This appears to be happening when a pre-filled branch variable is not found, which is fine. We should hide these git-config errors.
<rdar://problem/109107387>
Pull request: https://github.com/WebKit/WebKit/pull/13646
Committed 263965@main (b614d2729f54): <https://commits.webkit.org/263965@main> Reviewed commits have been landed. Closing PR #13646 and removing active labels.
Committed 259548.760@safari-7615-branch (ce9226fc4698): <https://commits.webkit.org/259548.760@safari-7615-branch> Reviewed commits have been landed. Closing PR #595 and removing active labels.