Upgrading Bitbucket Server Integration from 4.0.0 to 4.1.1 caused multibranch pipeline builds to fail. We use shallow clone and SSH to checkout.

We see an error like this:

ERROR: The requested resource does not exist
ERROR: Could not determine exact tip revision of <BRANCH>; falling back to nondeterministic checkout

Rolling back the plugin to 4.0.0 and restarting Jenkins results in the builds working again.