Importing XSLTs fails with "Not a supported Type" error

[cambot]

Importing all files calls ..ListItemsInFiles() (which also has the side effect of loading those files) reports that it is not able to load *.xsl files. I believe it is this line of code that does not like the transform files:

set res = $system.OBJ.ImportDir(mappedFilePath,,"-d",.err,1, .tempItemList, $$$DoNotLoad)

I am not sure what needs to happen to allow them to be imported. (I probably needs to take the type, walk through the mappings to a valid web app to get the target directory to copy them into)

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Module version: 2.12.2

[cambot]

I was able to verify that I can set up a web application and a workspace folder to edit custom XSLTs through VS Code. Committing those changes, pulling them down, and switching branches all work as I expect. It is just the "Import All (Force)" actions that seem to not handle xslts.

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This was validated on a 2.13 "Preview" version, aka commit 8aa09fd on main