1. Select skiptag in GitSCM as false
2. Apply Create Tag in GitPublisher.

This will try to first remove existing tag applied after fetching source code.
A simple fix would be to change ln: 236
// We delete the old tag generated by the SCM plugin
String buildnumber = "jenkins-" + projectName.replace(" ", "_") + "-" + buildNumber;
git.deleteTag(buildnumber);
---------------------to -----------------------------------
if (false == gitSCM.getSkipTag())

{ // We delete the old tag generated by the SCM plugin String buildnumber = "jenkins-" + projectName.replace(" ", "_") + "-" + buildNumber; git.deleteTag(buildnumber); }