Given that finding an existing pull-request is really a function of whatever remote we're using, we should compute the remote before searching for an existing pull-request.
<rdar://problem/99652015>
Pull request: https://github.com/WebKit/WebKit/pull/4102
Committed 254240@main (f6a3fb81a6b8): <https://commits.webkit.org/254240@main> Reviewed commits have been landed. Closing PR #4102 and removing active labels.
Committed 252432.406@safari-7614-branch (7f082189dbc1): <https://commits.webkit.org/252432.406@safari-7614-branch> Reviewed commits have been landed. Closing PR #59 and removing active labels.