Summary: Example cases that were wrongly considered external URLs: - "#foo" - "/foo" Note that Phorge usually does not change stable things. In fact this thing was not documented even inline, and was not even in the unit tests. So this is a fix, and not a breaking change. Probably no one had ever tried it. Closes T15182 Test Plan: The already existing unit tests still work. The added ones make sense. There are no problems doing other random things. Reviewers: O1 Blessed Committers, avivey Reviewed By: O1 Blessed Committers, avivey Subscribers: tobiaswiese, Matthew, Cigaryno Maniphest Tasks: T15182 Differential Revision: https://we.phorge.it/D25555