In the past Apache configs were in the apache-config repo.
When they were there and since Tim Starling wrote the generator for redirects you had to edit redirects.dat, then generate redirects.conf from that and upload both to Gerrit. Then jenkins would check if they matched and vote on that.
Then, the Apache configs have been moved into the mediawiki module (which i'm not entirely sure i support because many redirects have nothing to do with mediawiki, but that's not the point here). The point of this bug is that now f.e. on https://gerrit.wikimedia.org/r/#/c/149890/ you can see how it's possible to change just the .dat file, not upload the .conf file, but jenkins doesn't say anything about it, where it should vote it down. That is a regression compared to for example https://gerrit.wikimedia.org/r/#/c/146334/.
Can we have the Apache lint checks back even though now the configs are in the Mediawiki module?