Revert "-"

This reverts commit 418ec75.

Author: fabpot

.github/workflows/package-tests.yml

@@ -16,6 +16,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Fetch branch from where the PR started
+        run: git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
+
       - name: Verify subtree-splits are auto-closed
         run: |
           php .github/sync-packages.php