Somewhat related to JENKINS-62915. However, without Bitbucket supporting any notion of unstable build natively, we need this tool to perform better.

Currently this plugin automatically marks unstable jenkins builds as successful. Personally I'd prefer it if unstable mapped to failed in Bitbucket (which is what the other Bitbucket plugin does). The sensible path would be to add this as a configuration option, with the default retaining the current behaviour to prevent any breaking changes.