gitlab-ci: fix tag removal for a branch push job

We should remove a tag after fetching of a remote repository.

It is hotfix of commit 0f564f34
('gitlab-ci: remove tag from pushed branch commit').

Follows up #3745

Co-authored-by: Alexander V. Tikhonov <avtikhon@tarantool.org>

.gitlab-ci.yml

@@ -21,24 +21,24 @@ variables:
 #    https://docs.gitlab.com/ee/ci/yaml/README.html#git-submodule-strategy
 # List of steps:
 # 1) Check/clone the Tarantool repository with submodules.
-# 2) Drop a tag that points to a current commit (if any) on a job triggered by
+# 2) For shell based jobs change ownership of all the sources
+#    to gitlab-runner user (NOTE: in Docker based jobs the
+#    gitlab-runner user is not known).
+# 3) Fetch Tarantool sources with branches and force checkout
+#    of the testing commit.
+# 4) Drop a tag that points to a current commit (if any) on a job triggered by
 #    pushing to a branch (as against of pushing a tag). Otherwise we may get
 #    two jobs for the same x.y.z-0-gxxxxxxxxx build: one is run by pushing a
 #    branch and another by pushing a tag. The idea is to hide the new tag from
 #    the branch job as if a tag would be pushed strictly after all branch jobs
 #    for the same commit. See gh-3745.
-# 3) For shell based jobs change ownership of all the sources
-#    to gitlab-runner user (NOTE: in Docker based jobs the
-#    gitlab-runner user is not known).
-# 4) Fetch Tarantool sources with branches and force checkout
-#    of the testing commit.
 # 5) Update submodules recursively (use force where supports).
 # 6) Cleanup all the sources from all files except from repository.
 before_script:
   - /bin/bash -c "pwd && ls -d .git || git clone --recurse-submodules ${CI_REPOSITORY_URL} ."
-  - /bin/bash -c "[ -z \"${CI_COMMIT_TAG:-}\" ] && git tag -d \"$(git tag --points-at \"${CI_COMMIT_SHORT_SHA}\")\" 2>/dev/null || true"
   - /bin/bash -c "! docker -v || (uid=`id -u` ; gid=`id -g` ; docker run -w /source -v ${PWD}:/source -i packpack/packpack:el-7 /bin/bash -c \"chown -R \$uid:\$gid * .[^.]*\")"
   - /bin/bash -c "git fetch -p && git checkout -f ${CI_COMMIT_SHORT_SHA}"
+  - /bin/bash -c "[ -z \"${CI_COMMIT_TAG:-}\" ] && git tag -d \"$(git tag --points-at HEAD)\" 2>/dev/null || true"
   - /bin/bash -c "git submodule sync --recursive && git submodule update --force --init --recursive || git submodule update --recursive --init"
   - /bin/bash -c "git clean -ffdx && git submodule foreach git clean -ffdx && git submodule foreach git status"