I have updated a PR (push) and our ci is trying to fetch the commit with
`git fetch origin +refs/pull-requests/575/from:refs/remotes/origin/PR-575`
But the fetch gets the old ref. So it looks like the ref is no longer updated since bitbucket 7.0.0.
Using `git fetch origin renovate/jint-3.0.x` to fetch the source branch works.