MCP Registry Publication - Declobbering (github#1151)

* declobbering tags

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: MattBabbage

.github/workflows/registry-releaser.yml

@@ -22,7 +22,12 @@ jobs:
           go-version: "stable"
 
       - name: Fetch tags
-        run: git fetch --tags
+        run: |
+          if [[ "${{ github.ref_type }}" != "tag" ]]; then
+            git fetch --tags
+          else
+            echo "Skipping tag fetch - already on tag ${{ github.ref_name }}"
+          fi
 
       - name: Install MCP Publisher
         run: |
@@ -47,6 +52,11 @@ jobs:
         run: |
           python3 -m json.tool server.json > /dev/null && echo "Configuration valid" || exit 1
 
+      - name: Display final server.json
+        run: |
+          echo "Final server.json contents:"
+          cat server.json
+
       - name: Login to MCP Registry (OIDC)
         run: ./mcp-publisher login github-oidc