Currently the plugin checks if the repo is public, and doesn't allow building PRs, "Skipping pull requests for public repositories." While I assume this is for security purposes for Bitbucket.org, it is a problematic limitation for private Bitbucket Server instances that use a PR-based flow and have the repo "Public", which only means it can be viewed and cloned. Only authenticated users can push and create pull requests and we need to be able to discover and test these effectively private pull requests