[fix] Weekly release workflow adjustments

.github/workflows/weekly-comfyui-release.yaml → .github/workflows/release-weekly-comfyui.yaml

@@ -1,5 +1,5 @@
 # Automated weekly workflow to bump ComfyUI frontend RC releases
-name: "Weekly ComfyUI Release"
+name: "Release: Weekly ComfyUI"
 
 on:
   # Schedule for Monday at 12:00 PM PST (20:00 UTC)
@@ -143,6 +143,28 @@ jobs:
           token: ${{ secrets.PR_GH_TOKEN }}
           path: comfyui
 
+      - name: Sync with upstream
+        working-directory: comfyui
+        run: |
+          set -euo pipefail
+
+          # Fetch latest upstream to base our branch on fresh code
+          # Note: This only affects the local checkout, NOT the fork's master branch
+          # We only push the automation branch, leaving the fork's master untouched
+          echo "Fetching upstream master..."
+          if ! git fetch https://github.com/comfyanonymous/ComfyUI.git master; then
+            echo "Failed to fetch upstream master"
+            exit 1
+          fi
+
+          echo "Checking out upstream master..."
+          if ! git checkout FETCH_HEAD; then
+            echo "Failed to checkout FETCH_HEAD"
+            exit 1
+          fi
+
+          echo "Successfully synced with upstream master"
+
       - name: Update requirements.txt
         working-directory: comfyui
         run: |