Similar to https://bugs.webkit.org/show_bug.cgi?id=193196, we need to run Tools/Scripts/update-webkit for Apply-WatchList. update-webkit will do 'git pull'. By default, Buildbot updates the repo in a weird manner, and doesn't update the source completely. It only does a 'git fetch', not 'git pull'. It results in origin/master never being updated. Therefore 'git status' shows: "Your branch is ahead of 'origin/master' by x commits." This cause the apply-watchlist command to generate the incorrect cc list based on the previous commits as well.
Created attachment 377336 [details] Patch
Comment on attachment 377336 [details] Patch Clearing flags on attachment: 377336 Committed r249148: <https://trac.webkit.org/changeset/249148>
All reviewed patches have been landed. Closing bug.
<rdar://problem/54752732>