The BitbucketTagSCMHead.getTimestamp() always returns UNKNOWN_TIMESTAMP: https://github.com/jenkinsci/atlassian-bitbucket-server-integration-plugin/blob/b56e566df8082ef1bd526708d1f552e84c2ea984/src/main/java/com/atlassian/bitbucket/jenkins/internal/scm/BitbucketTagSCMHead.java#L38

This causes the tag is being ignored as soon as there is any upper limit for the tag age set in the "Tags" Build strategy.

Would it be possible to use either the actual time when the tag was created (if available), or at least the timestamp of the commit the tag is assigned to?