In some cases, we give production branches aliases to make interacting with them easier. In these cases, our branch aliases aren't classified as production branches, so `git-webkit pr` won't automatically create PR branches from them. We should automatically create PR branches from such branch aliases.
<rdar://problem/102214981>
Pull request: https://github.com/WebKit/WebKit/pull/6375
Committed 256711@main (2dc9f3a6d392): <https://commits.webkit.org/256711@main> Reviewed commits have been landed. Closing PR #6375 and removing active labels.
Committed 252432.835@safari-7614-branch (bb1729e2f7c9): <https://commits.webkit.org/252432.835@safari-7614-branch> Reviewed commits have been landed. Closing PR #210 and removing active labels.