Chan Jun Da

I'm ok with it if it provides significant speedup in the system tests. My personal preference would be to reduce the amount of test-only behavior to be as small as...

Seems like there is an option in one of the later git versions (2.36) of `git log --remerge-diff` which I found from this [stackoverflow post](https://stackoverflow.com/a/71181334) though I'm not too sure...

Do you have a sample test run on a repo where this might be a problem? It's been awhile since I looked at the line attribution part of the code...

I think just changing the order might be enough since if im not wrong, the email is unique as long as it's not the default github one they use as...

Some quick comments before reviewing: - Should probably add the command to test somewhere in the PR itself - The commit message's final line should be a short call to...