I should say that this repo has one of the most confusing error messages I've ever seen. What's wrong?

All test URLs are tested across all detections to ensure there are not false positives/negatives.

The error message cannot be any clearer, it literally asks a question and tells you how to fix it:

Is this URL `isCommit`?
	/refined-github/refined-github/pull/148/changes/e1aba6f

• Yes? Add it to the `addTests()` array.
• No? The `isCommit` detection is wrong and should be fixed.