Pull Request merge attempt (or Merge Check) fails saying that commit author name / email is incorrect

This may happen when you use fork-based workflows, like described below:

• new forked repository is created by user A

• user A adds new commits to this repo and creates back-merge Pull Request to original repository

• if user B tries to merge such Pull Request, these commits are to be added to original repo by user B

• commits in such Pull Request are new to original repository and should be validated by YACC

• YACC compares commit author name/email with current user B - and they are different, so such commit is to be rejected by YACC

Unfortunately, there’s no robust / guaranteed way to detect and handle such forked commits, so the suggested workaround is to use Require Committer Matches Valid User option instead of Require Matching Committer Email / Require Matching Committer Name ones. It will do a less strict check that author of commit being merged is known Bitbucket user.

See also

• YACC is rejecting my push complaining that my user name and/or email is wrong but the Author: from git log is correct!