Revert "Fully unshallow every as ls-remote also fails"

This reverts commit 1b8b6b2.

Author: AB-xdev

.github/workflows/update-from-template.yml

@@ -209,9 +209,8 @@ jobs:
             echo "Checking if PR can be auto-merged. Try: $i"
 
             echo "Checking if update-branch-merged exists"
-            git fetch --unshallow && git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*" || true
-            git fetch origin
-            if [[ $(git rev-parse origin/${{ env.UPDATE_BRANCH_MERGED }}) ]]; then
+            git fetch
+            if [[ $(git ls-remote --exit-code --heads origin ${{ env.UPDATE_BRANCH_MERGED }}) ]]; then
               echo "Branch origin/${{ env.UPDATE_BRANCH_MERGED }} is missing"
               exit 0
             fi
@@ -273,7 +272,8 @@ jobs:
           echo "Base branch is $base_branch"
 
           echo "Fully fetching..."
-          git fetch --unshallow && git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*" || true
+          git fetch --unshallow || true
+          git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*"
           git fetch origin
 
           if [[ $(git rev-parse origin/${{ env.UPDATE_BRANCH_MERGED }}) ]]; then