In this case, the developer was replied to by Krenair in a second PR they opened for the same issue, so at least they weren't ignored, just looks like the first PR wasn't closed along with the second one: https://github.com/wikimedia/mediawiki-core/pull/20
The code for Yuvi's SuchABot is here: https://git.wikimedia.org/tree/labs%2Ftools%2FSuchABot.git
Cheers, grunny