JENKINS-65156 / PR #416 added "Ignore pull requests marked as drafts" (IgnoreDraftPullRequestFilterTrait) to the GitHub Branch Source plugin. Jenkins now offers the trait for branch sources from the Bitbucket Branch Source and Bitbucket Server Integration plugins as well. The trait however cannot recognize any draft PRs from those branch sources because the request instanceof GitHubSCMSourceRequest check will evaluate to false. To minimise user confusion, the trait should be hidden from the list or clearly labeled "GitHub".