git: ensure file-looking git refs aren't parsed as URLs #4776
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Fixes #4326 (comment) (thanks @stephanos! 🎉)
URLs that look like
./path/to/file
and../path/to/file
definitely aren't git URLs - so we should bail out early.This was causing a weird issue where if you copied
./.git
this would be detected as a valid url parsing withhost = "."
andpath = "/git"
. The fix for this is to make sure that for these explicit file-like paths, we never parse them as url-refs.Also some tests to make sure this doesn't break again!