We use webkitbot to revert commits for lots of different reasons, but the bugs are always created with the text "<revision> broke the build," e.g. bug #222905. Let's say "introduced a regression" instead.
Created attachment 422563 [details] Patch
Committed r274079: <https://commits.webkit.org/r274079> All reviewed patches have been landed. Closing bug and clearing flags on attachment 422563 [details].
<rdar://problem/75175583>