I was found out that some key code got deleted from my day-to-day task setup. Thankfully I've been keeping that directory under version control and, with #emacs #magit, was able to find out when I accidentally deleted it and restore just that, keeping other changes to the file. This process was intuitive (= without referring to any documentation) with magit; I'm not sure how I would have done it with raw #git.
@ClickHouseCI I might have to try that. But I knew the file and WHERE in the file it was, but I didn't know what string was missing (at least, how much was missing)
@worldsendless
git log -p -- $file_name
¯\_(ツ)_/¯