firestore.it.ITQueryWatchTest: nonEmptyResults_deletedDocument_REMOVED failed

[flaky-bot]

Note: #1011 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: a3cc6fe
buildURL: Build Status, Sponge
status: failed

Test output

events[
event{error=null,value={documents[{path=java-nonEmptyResults_deletedDocument_REMOVED-EJ54JuXesBFcKCWzcpqu/doc,data={foo=bar}}],documentChanges[{path=java-nonEmptyResults_deletedDocument_REMOVED-EJ54JuXesBFcKCWzcpqu/doc,data={foo=bar}}]}},
]
value of               : size()
expected to be in range: [2..2]
but was                : 1
	at com.google.cloud.firestore.it.ITQueryWatchTest$QuerySnapshotEventListener$ListenerAssertions.eventCountIsAnyOf(ITQueryWatchTest.java:809)
	at com.google.cloud.firestore.it.ITQueryWatchTest.nonEmptyResults_deletedDocument_REMOVED(ITQueryWatchTest.java:369)

[flaky-bot]

Looks like this issue is flaky. 😟

I'm going to leave this open and stop commenting.

A human should fix and close this.

---

When run at the same commit (a3cc6fe), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).

[zhumin8]

observed another occurrence here