We should consider the source remote of a branch when updating it. Every reporelay instance has a set of forwarding instructions that specify which branches should be forwarded to which remotes. When rebooting (or initially cloning), we should base our branch forwarding on these instructions
<rdar://problem/96964636>
Pull request: https://github.com/WebKit/WebKit/pull/2374
Committed 252455@main (4e6bb8421a8c): <https://commits.webkit.org/252455@main> Reviewed commits have been landed. Closing PR #2374 and removing active labels.