lib: fix recursive watch on Linux #51049
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Fixes: #48437
Any changes that happen before the
watch
is set up are lost because thetraverse
call is asynchronous. I get the tests to pass changing thetraverse
call bythis.#watchFile
to watch the folder before any changes and then callingthis.#watchFolder
to traverse the folder's content and watch it.Also noticed the timeout calls in the tests. I removed them because I think they're highlighting the issue.