fix for push rejection

Author: brown9804

.github/workflows/update-md-date.yml

@@ -8,7 +8,7 @@ on:
 permissions:
   contents: write
   pull-requests: write
-  
+
 jobs:
   update-date:
     runs-on: ubuntu-latest
@@ -31,15 +31,15 @@ jobs:
         run: |
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
           git config --global user.name "github-actions[bot]"
-          
+
       - name: Update last modified date in Markdown files
         run: python .github/workflows/update_date.py
 
       - name: Commit changes
         env:
           TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          git fetch origin
+          git fetch origin ${{ github.event.pull_request.head.ref }}
           git pull --rebase origin ${{ github.event.pull_request.head.ref }} || echo "No rebase needed"
           git add -A
           git commit -m "Update last modified date in Markdown files" || echo "No changes to commit"