Overwrite tag in subtree split CI job.

.gitlab-ci.yml

@@ -291,6 +291,6 @@ subtree split:
     - git checkout -b split $COMMIT
     - git remote set-url origin $URL
     - git remote -v
-    - if [[ -n "$CI_COMMIT_BRANCH" ]]; then git push origin HEAD:$CI_COMMIT_BRANCH; elif [[ -n "$CI_COMMIT_TAG" ]]; then git tag $CI_COMMIT_TAG && git push origin $CI_COMMIT_TAG; fi
+    - if [[ -n "$CI_COMMIT_BRANCH" ]]; then git push origin HEAD:$CI_COMMIT_BRANCH; elif [[ -n "$CI_COMMIT_TAG" ]]; then git tag --force $CI_COMMIT_TAG && git push origin $CI_COMMIT_TAG; fi
   rules:
     - *deploy-rules