Make it work for tags

.gitea/workflows/test.yml

@@ -7,7 +7,7 @@ jobs:
     container: offline-twitter/go
     steps:
       - name: checkout
-        uses: https://${{ secrets.GITHUB_TOKEN }}:@git.offline-twitter.com/wispem/shellcheckout@${{ github.ref }}
+        uses: https://${{ secrets.GITHUB_TOKEN }}:@git.offline-twitter.com/offline-labs/shellcheckout@${{ github.ref }}
 
       - name: wc -l
         run: wc -l action.yml

action.yml

@@ -14,5 +14,5 @@ runs:
         set -x
         git remote add origin "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY"
         git fetch --quiet origin "$GITHUB_REF"
-        git checkout "$GITHUB_REF_NAME"
+        git checkout FETCH_HEAD
       shell: bash