We weren't including username in our contributor objects from Bitbucket PRs. This resulted in a few usability warts, namely, a user would always be prompted if they wanted to overwrite their own PR.
<rdar://problem/114570779>
Pull request: https://github.com/WebKit/WebKit/pull/17133
Committed 267702@main (767f671b3873): <https://commits.webkit.org/267702@main> Reviewed commits have been landed. Closing PR #17133 and removing active labels.
Committed 265870.523@safari-7616-branch (9c83539b389c): <https://commits.webkit.org/265870.523@safari-7616-branch> Reviewed commits have been landed. Closing PR #749 and removing active labels.