Occasional erratic sample times at 6 minute sample rate. #111

ryanneve · 2022-01-11T16:06:44Z

Subject of the issue

Occasional sample timing errors when logging slowly.

Your workbench

Firmware 2.1
Connected to MS5837-BA02 pressure sensor
Using Qwiic bus to power a BLE module connected to RX & TX.

Steps to reproduce

Set to log every 360 seconds
No slow log on pin 11
Powered from battery
Logging to serial & SD
Minimum awake time 15000 ms
Minimum Qwiic bus power up delay 10000 ms

Expected behavior

Samples should be every 6 minutes.

Actual behavior

Outlier samples below marked with <-(x) where x is the effective sample time in seconds when it's not 360.
The length of the erratic sample times don't seem to have a pattern.
This could either be a problem with sleeping for the wrong about of time (sysTicksToSleep), or being woken unexpectedly.

Example log:

2022-01-06 06:40:02.384313 01/06/2022,06:40:26.26,5.22,-911.13,-18.07,-424.32,24.82,1018.96,21.49,157,
2022-01-06 06:46:02.774027 01/06/2022,06:46:26.26,5.22,-894.53,-8.79,-421.39,24.72,1018.99,21.48,158,
2022-01-06 06:52:02.157746 01/06/2022,06:52:26.26,5.22,-900.39,-2.93,-422.36,24.63,1019.06,21.48,159,
2022-01-06 06:58:02.540408 01/06/2022,06:58:26.26,5.22,-910.16,-9.77,-421.88,24.72,1019.01,21.49,160,
2022-01-06 07:04:01.921364 01/06/2022,07:04:26.26,5.22,-905.27,-6.84,-431.64,24.82,1019.09,21.50,161,
2022-01-06 07:10:02.298420 01/06/2022,07:10:26.26,5.22,-912.11,-5.37,-420.90,24.72,1019.07,21.50,162,
2022-01-06 07:16:02.678596 01/06/2022,07:16:26.26,5.22,-908.20,0.0,-431.64,24.68,1018.96,21.49,163,
2022-01-06 07:22:02.050786 01/06/2022,07:22:26.26,5.22,-895.02,-12.21,-425.78,24.63,1019.08,21.49,164,
2022-01-06 07:28:01.473352 01/06/2022,07:28:26.26,5.22,-908.20,-11.72,-434.57,24.82,1019.08,21.50,165,
2022-01-06 07:34:01.852509 01/06/2022,07:34:26.26,5.22,-896.97,-4.39,-423.34,24.63,1019.01,21.50,166,
2022-01-06 07:40:02.239122 01/06/2022,07:40:26.26,5.22,-912.11,-17.58,-422.36,24.72,1019.03,21.50,167,
2022-01-06 07:46:01.621976 01/06/2022,07:46:26.26,5.23,-905.27,-5.86,-429.20,24.72,1019.0,21.50,168,
2022-01-06 07:52:02.009958 01/06/2022,07:52:26.26,5.23,-898.93,-3.91,-431.15,24.72,1019.12,21.51,169,
2022-01-06 07:52:36.053366 01/06/2022,07:53:00.38,5.22,-908.20,-8.30,-425.78,24.63,1019.04,21.51,170,<-(34)
2022-01-06 07:58:36.438268 01/06/2022,07:59:00.38,5.23,-905.27,-18.55,-412.60,24.63,1019.09,21.41,171,
2022-01-06 08:04:35.820607 01/06/2022,08:05:00.38,5.22,-904.30,-10.74,-431.15,24.53,1019.17,21.33,172,
2022-01-06 08:10:36.206776 01/06/2022,08:11:00.38,5.22,-893.55,-9.28,-431.15,24.63,1019.23,21.30,173,
2022-01-06 08:16:35.592003 01/06/2022,08:17:00.38,5.22,-902.83,-6.35,-423.34,24.72,1019.50,21.30,174,
2022-01-06 08:22:35.971991 01/06/2022,08:23:00.38,5.23,-907.23,6.35,-415.53,24.53,1019.55,21.28,175,
2022-01-06 08:28:36.355417 01/06/2022,08:29:00.38,5.22,-897.46,-6.35,-418.46,24.72,1019.48,21.26,176,
2022-01-06 08:34:35.724833 01/06/2022,08:35:00.38,5.23,-911.62,-7.81,-429.20,24.34,1019.59,21.23,177,
2022-01-06 08:40:36.098422 01/06/2022,08:41:00.38,5.22,-897.95,-2.44,-426.27,24.72,1019.56,21.22,178,
2022-01-06 08:46:36.479308 01/06/2022,08:47:00.38,5.22,-901.86,-9.77,-425.78,24.48,1019.45,21.25,179,
2022-01-06 08:48:31.608826 01/06/2022,08:48:56.37,5.23,-889.16,-14.65,-419.92,24.72,1019.44,21.26,180,<-(116)
2022-01-06 08:54:31.995066 01/06/2022,08:54:56.37,5.23,-911.62,-17.58,-414.06,24.72,1019.52,21.28,181,
2022-01-06 09:00:32.368889 01/06/2022,09:00:56.36,5.22,-899.41,-1.95,-426.76,24.53,1019.53,21.30,182,
2022-01-06 09:06:31.750427 01/06/2022,09:06:56.37,5.22,-902.83,-6.84,-426.76,24.63,1019.50,21.30,183,
2022-01-06 09:12:32.132255 01/06/2022,09:12:56.37,5.22,-904.79,0.49,-409.18,24.53,1019.61,21.30,184,
2022-01-06 09:18:31.507550 01/06/2022,09:18:56.37,5.22,-912.11,-6.84,-420.90,24.68,1019.66,21.30,185,
2022-01-06 09:24:31.891972 01/06/2022,09:24:56.36,5.22,-909.18,-6.35,-424.32,24.48,1019.69,21.29,186,
2022-01-06 09:30:32.278901 01/06/2022,09:30:56.37,5.23,-909.18,-12.70,-432.13,24.63,1019.67,21.28,187,
2022-01-06 09:36:31.666054 01/06/2022,09:36:56.37,5.22,-914.06,-20.02,-415.53,24.34,1019.79,21.28,188,
2022-01-06 09:42:32.044358 01/06/2022,09:42:56.37,5.22,-898.44,-8.30,-427.25,24.72,1019.79,21.27,189,
2022-01-06 09:48:31.429876 01/06/2022,09:48:56.36,5.23,-892.58,2.44,-425.78,24.39,1019.87,21.26,190,
2022-01-06 09:54:31.811853 01/06/2022,09:54:56.37,5.22,-901.37,-20.02,-421.88,24.29,1019.96,21.27,191,
2022-01-06 10:00:32.201316 01/06/2022,10:00:56.37,5.23,-908.69,-4.39,-425.78,24.72,1019.93,21.34,192,
2022-01-06 10:06:31.588394 01/06/2022,10:06:56.37,5.22,-902.34,-15.63,-432.13,24.91,1019.96,21.41,193,
2022-01-06 10:12:31.978334 01/06/2022,10:12:56.36,5.22,-910.16,-19.04,-420.41,24.63,1019.87,21.45,194,
2022-01-06 10:18:31.390724 01/06/2022,10:18:56.36,5.22,-905.76,-5.86,-411.13,24.82,1019.94,21.49,195,
2022-01-06 10:24:31.777668 01/06/2022,10:24:56.37,5.23,-898.44,-18.55,-417.48,24.68,1019.92,21.52,196,
2022-01-06 10:30:32.158261 01/06/2022,10:30:56.36,5.22,-901.37,-14.65,-420.90,24.53,1019.84,21.54,197,
2022-01-06 10:36:31.538088 01/06/2022,10:36:56.37,5.23,-896.48,-10.74,-426.27,24.72,1019.77,21.57,198,
2022-01-06 10:42:31.918311 01/06/2022,10:42:56.37,5.22,-896.48,-5.86,-426.76,24.87,1019.77,21.59,199,
2022-01-06 10:48:32.292498 01/06/2022,10:48:56.37,5.22,-903.81,-5.86,-422.36,24.72,1019.55,21.61,200,
2022-01-06 10:49:58.390836 01/06/2022,10:50:22.47,5.22,-908.20,1.46,-422.36,25.01,1019.51,21.62,201,
2022-01-06 10:55:57.777838 01/06/2022,10:56:22.47,5.22,-910.16,-12.21,-421.39,24.87,1019.37,21.64,202,
2022-01-06 10:57:02.854909 01/06/2022,10:57:27.73,5.23,-908.20,-12.70,-432.62,24.87,1019.38,21.64,203,<-(65)
2022-01-06 10:58:55.983204 01/06/2022,10:59:20.00,5.22,-912.60,-0.98,-426.76,24.87,1019.32,21.65,204,<-(113)
2022-01-06 11:02:38.217095 01/06/2022,11:03:02.42,5.22,-890.63,-15.63,-432.62,24.87,1019.19,21.66,205,<-(222)
2022-01-06 11:07:48.649015 01/06/2022,11:08:13.66,5.22,-903.81,-3.91,-423.83,24.72,1019.06,21.68,206,
2022-01-06 11:13:49.033908 01/06/2022,11:14:13.66,5.22,-902.83,-29.30,-423.83,24.82,1019.05,21.70,207,
2022-01-06 11:19:49.422807 01/06/2022,11:20:13.66,5.23,-910.16,-19.04,-426.76,24.87,1018.91,21.71,208,
2022-01-06 11:21:20.529724 01/06/2022,11:21:44.70,5.22,-898.93,-8.79,-420.90,25.06,1018.88,21.71,209,<-(91)
2022-01-06 11:27:19.919363 01/06/2022,11:27:44.70,5.23,-897.46,-19.53,-420.41,24.87,1018.81,21.72,210,
2022-01-06 11:33:20.309453 01/06/2022,11:33:44.70,5.22,-897.46,4.39,-421.88,24.72,1018.42,21.68,211,
2022-01-06 11:39:19.697957 01/06/2022,11:39:44.70,5.22,-904.30,-13.18,-428.71,24.82,1018.14,21.64,212,
2022-01-06 11:45:20.084902 01/06/2022,11:45:44.70,5.23,-912.11,-22.46,-422.36,24.63,1017.84,21.62,213,
2022-01-06 11:51:20.472737 01/06/2022,11:51:44.70,5.22,-906.74,-17.09,-422.85,24.87,1017.61,21.60,214,
2022-01-06 11:57:19.859547 01/06/2022,11:57:44.70,5.22,-912.11,-15.14,-424.32,24.53,1017.38,21.58,215,
2022-01-06 12:03:20.233918 01/06/2022,12:03:44.70,5.22,-896.00,-14.16,-424.80,24.82,1017.46,21.57,216,
2022-01-06 12:09:19.616903 01/06/2022,12:09:44.70,5.22,-902.83,-15.63,-428.22,24.63,1017.54,21.56,217,
2022-01-06 12:10:06.675965 01/06/2022,12:10:31.51,5.22,-891.11,-9.28,-421.88,24.82,1017.53,21.56,218,<-(47)
2022-01-06 12:16:07.064852 01/06/2022,12:16:31.51,5.22,-902.34,-15.63,-424.80,24.72,1017.37,21.63,219,
2022-01-06 12:22:06.450262 01/06/2022,12:22:31.50,5.22,-897.95,-16.11,-430.18,24.91,1017.50,21.69,220,
2022-01-06 12:28:06.839986 01/06/2022,12:28:31.51,5.22,-901.86,-10.25,-428.22,24.72,1017.45,21.75,221,
2022-01-06 12:34:07.228279 01/06/2022,12:34:31.51,5.22,-903.32,-17.09,-433.11,24.87,1017.30,21.80,222,
2022-01-06 12:40:06.613850 01/06/2022,12:40:31.51,5.22,-894.04,-9.28,-426.27,24.91,1017.21,21.84,223,
2022-01-06 12:46:07.004021 01/06/2022,12:46:31.50,5.22,-902.34,-15.14,-433.59,25.06,1017.07,21.88,224,
2022-01-06 12:52:06.390164 01/06/2022,12:52:31.51,5.22,-900.39,-7.32,-424.80,25.01,1017.17,21.91,225,
2022-01-06 12:58:06.779445 01/06/2022,12:58:31.50,5.22,-901.37,-16.11,-420.90,25.20,1017.23,21.93,226,
2022-01-06 12:59:58.908664 01/06/2022,13:00:23.58,5.22,-907.23,-16.11,-417.97,24.91,1017.19,21.93,227,<-(112)
2022-01-06 13:05:59.298982 01/06/2022,13:06:23.58,5.22,-904.30,-15.63,-420.41,24.91,1017.16,21.95,228,
2022-01-06 13:11:58.673748 01/06/2022,13:12:23.58,5.22,-906.25,-9.77,-432.62,24.91,1017.07,21.95,229,
2022-01-06 13:17:59.062905 01/06/2022,13:18:23.58,5.22,-914.55,-13.67,-426.27,24.91,1017.16,21.96,230,
2022-01-06 13:23:58.444790 01/06/2022,13:24:23.58,5.22,-887.21,-23.44,-423.34,25.01,1017.29,21.97,231,
2022-01-06 13:29:58.831740 01/06/2022,13:30:23.58,5.22,-897.46,-10.25,-424.80,24.53,1017.19,21.98,232,
2022-01-06 13:35:48.206348 01/06/2022,13:36:13.27,5.22,-905.76,-4.88,-424.80,24.53,1017.39,21.99,233,
2022-01-06 13:36:40.271678 01/06/2022,13:37:04.99,5.22,-904.30,-6.84,-428.22,24.91,1017.41,21.98,234,<-(84)
2022-01-06 13:41:43.628536 01/06/2022,13:42:08.84,5.22,-889.65,-16.11,-425.29,25.01,1017.19,22.01,235,
2022-01-06 13:47:44.011205 01/06/2022,13:48:08.84,5.22,-897.46,-6.35,-416.50,25.25,1016.89,22.08,236,
2022-01-06 13:53:44.402759 01/06/2022,13:54:08.84,5.22,-893.55,-17.09,-418.46,25.92,1016.83,22.24,237,
2022-01-06 13:59:43.791536 01/06/2022,14:00:08.84,5.22,-906.25,-6.84,-430.66,25.92,1016.59,22.39,238,
2022-01-06 14:05:44.180041 01/06/2022,14:06:08.84,5.22,-897.95,-13.18,-430.18,25.92,1016.65,22.52,239,
2022-01-06 14:11:43.600666 01/06/2022,14:12:08.84,5.22,-909.18,-8.79,-425.29,26.30,1016.63,22.66,240,
2022-01-06 14:17:43.984944 01/06/2022,14:18:08.84,5.22,-896.97,-16.60,-432.13,25.73,1016.39,22.77,241,
2022-01-06 14:23:44.369172 01/06/2022,14:24:08.84,5.22,-907.71,-0.49,-446.78,26.21,1016.21,22.84,242,
2022-01-06 14:29:43.751769 01/06/2022,14:30:08.84,5.22,-907.71,-14.65,-420.90,26.21,1015.96,22.92,243,
2022-01-06 14:35:44.124978 01/06/2022,14:36:08.84,5.21,-911.13,-18.07,-424.80,25.92,1015.89,22.98,244,
2022-01-06 14:36:35.189160 01/06/2022,14:37:00.03,5.22,-287.11,-10.25,-945.31,26.26,1015.92,22.99,245,<-(52)
2022-01-06 14:42:35.571215 01/06/2022,14:43:00.02,5.22,-815.92,-21.97,-581.05,26.11,1015.99,23.04,246,
2022-01-06 14:48:34.957664 01/06/2022,14:49:00.02,5.22,-821.78,-14.16,-589.84,26.21,1016.03,23.05,247,
2022-01-06 14:51:48.168120 01/06/2022,14:52:13.35,5.22,-817.38,-6.84,-575.68,26.50,1015.97,23.05,248,<-(193)
2022-01-06 14:56:12.452299 01/06/2022,14:56:37.55,5.22,-803.71,-10.74,-569.82,26.30,1016.03,23.05,249,<-(264)
2022-01-06 14:58:20.597441 01/06/2022,14:58:45.63,5.22,-814.94,-23.44,-583.01,26.30,1015.87,23.05,250,<-(128)
2022-01-06 15:04:20.982398 01/06/2022,15:04:45.63,5.22,-809.57,-17.09,-576.17,25.92,1015.74,23.06,251,
2022-01-06 15:10:20.369514 01/06/2022,15:10:45.63,5.22,-813.96,-4.39,-587.89,26.26,1015.78,23.06,252,
2022-01-06 15:13:42.593125 01/06/2022,15:14:07.23,5.22,-830.57,-5.37,-564.45,25.92,1015.82,23.06,253,<-(202)
2022-01-06 15:14:04.626784 01/06/2022,15:14:29.41,5.22,-833.98,-23.93,-568.85,26.50,1015.83,23.07,254,<-(12)
2022-01-06 15:20:04.002364 01/06/2022,15:20:29.40,5.22,-838.87,-0.98,-562.01,25.73,1015.74,22.90,255,
2022-01-06 15:24:50.296102 01/06/2022,15:25:15.04,5.22,-827.15,-16.60,-547.36,25.44,1015.77,22.72,256,
2022-01-06 15:30:49.678700 01/06/2022,15:31:15.04,5.22,-836.91,-4.88,-545.41,24.87,1015.75,22.50,257,
2022-01-06 15:36:50.064877 01/06/2022,15:37:15.03,5.22,-833.50,-20.02,-550.78,24.82,1015.60,22.36,258,
2022-01-06 15:42:49.444796 01/06/2022,15:43:15.04,5.22,-819.82,-10.74,-542.48,24.72,1015.72,22.20,259,

PaulZC · 2022-01-11T16:49:33Z

Hi Ryan,

Please try going back to v1.11. Does it still happen?

A lot changed when we migrated to v2 of Apollo3. Maybe there's a residual gremlin in there somewhere...

Thank you,
Paul

ryanneve · 2022-01-11T18:17:55Z

We're also seeing timing problems in 1.11 which is why we tried 2.1. Overall, timing on 2.1 firmware is much more reliable than 1.11. The problem with 2.1 isn't causing us much trouble, just strange.

The log below is from a sensor running 1.11 configured:

slow sample when pin 11 is high.
slow sample rate 30 minutes
fast sample rate 6 minutes
Minimum awake time 9000 ms
logging to serial and SD
has BT on RX/TX, but BT is always on.

As you can see the timing below is very erratic. When this happens it is very hard to get to the menu which I presume means it's ignoring the minimum awake time. Resetting the OLA fixes it for a while.

Here's some data from a sensor in the field running 1.11.
01/11/2022,10:24:27.76,3.86,12.21,-165.04,-1000.98,7.61,1044.96,5.70,1427,
01/11/2022,10:28:52.92,3.99,14.16,-155.76,-1004.88,6.61,1044.91,5.64,1428,
01/11/2022,10:33:51.79,3.99,20.51,-155.27,-994.63,6.46,1045.05,5.80,1429,
01/11/2022,10:38:50.67,3.99,26.86,-146.48,-1005.86,6.46,1044.99,5.79,1430,
01/11/2022,10:43:49.56,3.99,0.00,-156.74,-996.09,6.75,1044.76,5.68,1431,
01/11/2022,10:48:48.45,3.99,10.74,-164.06,-1002.93,6.75,1044.92,5.70,1432,
01/11/2022,10:53:47.33,3.99,28.32,-158.20,-1011.72,6.80,1044.83,5.66,1433,
01/11/2022,10:58:46.21,3.99,6.35,-154.79,-1003.91,6.46,1044.92,5.71,1434,
01/11/2022,11:03:45.10,3.99,16.60,-158.69,-1006.84,6.70,1044.89,5.69,1435,
01/11/2022,11:08:43.98,3.98,12.21,-153.81,-989.75,6.90,1044.65,5.59,1436,
01/11/2022,11:13:42.86,3.99,17.58,-149.41,-998.54,6.75,1044.67,5.61,1437,
01/11/2022,11:18:41.75,3.99,9.28,-153.81,-1008.30,6.61,1044.69,5.62,1438,
01/11/2022,11:23:40.63,3.98,-0.49,-150.88,-1006.84,6.75,1044.81,5.68,1439,
01/11/2022,11:28:39.52,3.98,2.93,-154.79,-1003.91,6.61,1047.28,8.50,1440,
01/11/2022,11:33:38.40,3.98,22.95,-166.02,-1013.18,6.80,1049.08,11.05,1441,
01/11/2022,11:38:37.28,3.98,15.14,-155.76,-1002.93,6.70,1049.84,11.35,1442,
01/11/2022,11:43:36.17,3.98,23.44,-163.57,-1011.72,6.75,1050.43,11.51,1443,
01/11/2022,11:48:35.05,3.98,20.02,-147.46,-1001.95,6.94,1052.73,11.84,1444,
01/11/2022,11:53:33.93,3.98,15.14,-158.20,-1006.35,6.75,1055.51,12.68,1445,
01/11/2022,11:58:32.82,3.98,16.11,-161.13,-1005.86,6.90,1057.08,12.98,1446,
01/11/2022,12:03:31.70,3.98,22.95,-156.74,-998.05,6.94,1058.22,12.99,1447,
01/11/2022,12:08:30.59,3.98,27.34,-154.79,-1010.25,6.90,1059.78,12.95,1448,
01/11/2022,12:13:29.47,3.98,14.65,-166.99,-1006.35,6.94,1060.44,12.88,1449,
01/11/2022,12:18:28.35,3.98,26.37,-160.64,-1002.93,6.75,1061.76,12.85,1450,
01/11/2022,12:23:27.23,3.98,14.65,-148.44,-1009.77,6.94,1063.69,12.80,1451,
01/11/2022,12:28:26.12,3.98,9.77,-156.74,-1006.35,7.23,1065.47,12.77,1452,
01/11/2022,12:33:25.00,3.98,8.79,-152.34,-1001.95,7.14,1066.81,12.74,1453,
01/11/2022,12:38:23.89,3.95,10.25,-160.64,-998.54,6.80,1067.86,12.72,1454,
01/11/2022,12:43:22.77,3.98,17.58,-146.48,-1009.28,6.99,1069.26,12.70,1455,
01/11/2022,12:48:21.65,3.98,14.16,-153.32,-999.02,6.94,1070.55,12.68,1456,

PaulZC · 2022-01-11T19:16:31Z

OK - thanks Ryan,

I will try to investigate this - but it may take me a very long time. I have a ton of other projects I need to work through first.

If you have any time to investigate this yourself, and maybe figure out a way to trap these events, I'd really appreciate it.

There is something you can try without changing the code. Please open the debug menu (press 'd' at the main menu) and enable the debug messages. You should see a message saying "goToSleep: sysTicksToSleep (adjusted) = " just before the Artemis goes into deep sleep. Do those values look OK?

Very best wishes,
Paul

PaulZC · 2022-01-20T08:55:07Z

Hi Ryan,

Did you have time to try the debug messages? Any clues?

Thanks,
Paul

ryanneve · 2022-01-20T13:32:06Z

Paul, Sorry I've been distracted with other things. I'll try to get this tested today or tomorrow.

ryanneve · 2022-01-25T14:59:14Z

I tried reproducing it with just an OLA, no sensors, and had no problems. I'll see If I can get another sensor to do another test.

ryanneve · 2022-01-26T21:18:39Z

Problem is reproducible, but is on someone else's desk, so I'm debugging at a distance. More soon.

ryanneve · 2022-01-27T15:40:13Z

When the OLA goes to sleep, you "disable pins 48 and 49 (UART0) to stop them back-feeding the CH340" in lowerPower.ino.
Is it possible that a device on UART1 (pins 12 & 13), like our Bluetooth module, could cause problems and so should be disabled as well? Something like:

if (settings.serialTxRxDuringSleep == false)
{
    am_hal_gpio_pinconfig(48 , g_AM_HAL_GPIO_DISABLE); //TX0
    am_hal_gpio_pinconfig(49 , g_AM_HAL_GPIO_DISABLE); //RX0
    if (settings.useTxRxPinsForTerminal == true)
    {
        am_hal_gpio_pinconfig(12 , g_AM_HAL_GPIO_DISABLE); //TX1
        am_hal_gpio_pinconfig(13 , g_AM_HAL_GPIO_DISABLE); //RX1
    }
}

ryanneve · 2022-02-02T14:03:39Z

This issue should be fixed by #116

ryanneve closed this as completed Feb 2, 2022

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Occasional erratic sample times at 6 minute sample rate. #111

Occasional erratic sample times at 6 minute sample rate. #111

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ryanneve commented Feb 2, 2022

Occasional erratic sample times at 6 minute sample rate. #111

Occasional erratic sample times at 6 minute sample rate. #111

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ryanneve commented Jan 11, 2022

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