After a plugin upgrade, the GIT_URL env variable seems to include the user name configured in the used Jenkins credential for the repo.

I'm doing some command line git stuff in a script step like this:

withCredentials([usernameColonPassword(credentialsId: 'bitbucketuser', variable: 'USERPASS')]) {
  script {
    stdout = bat(returnStdout: true, script: "@git.exe push https://${USERPASS}@${env.GIT_URL.split('://')[1]} --tags")
  } // script
} // withCredentials

Before the plugin changes, this worked fine, but after, the url git tries to push to, contains two @ characters.

Pipeline step from build done before the plugin change: @git.exe push https://${USERPASS}@bitbucket.org/Organization/repo.git --tags

Pipeline step from (failing) build done after the plugin change: @git.exe push https://${USERPASS}@johndoe@bitbucket.org/organization/repo.git --tags