We are currently trying to integrate Bitbucket Server/Data Center with Jenkins Templating Engine and it seems that the Bitbucket Environment Variables in both `bitbucket-push-and-pull-request-plugin` and `atlassian-bitbucket-server-integration-plugin` are not being properly injected into the Pipeline. 

Namely the ones that would help us to know if the build is coming from a Pull Request

Ideally we would like to have an experience similar to GitHub or GitLab plugins

e.g.: https://github.com/boozallen/sdp-libraries/blob/main/libraries/git/steps/on_pull_request.groovy