Update merge-next.sh

Author: ludamad

scripts/merge-train/merge-next.sh

@@ -73,12 +73,15 @@ TRAIN_BRANCH="$1"
 
 # Check if PR has auto-merge enabled
 pr_info=$(get_pr_for_branch "$TRAIN_BRANCH")
-if [[ -n "$pr_info" ]]; then
-  pr_number=$(echo "$pr_info" | jq -r '.number // empty')
-  if [[ -n "$pr_number" ]] && pr_has_auto_merge "$pr_number"; then
-    echo "PR #$pr_number has auto-merge enabled, skipping merge from next"
-    exit 0
-  fi
+if [[ -z "$pr_info" || "$pr_info" == "null" ]]; then
+  echo "No open PR found for branch $TRAIN_BRANCH, skipping merge"
+  exit 0
+fi
+
+pr_number=$(echo "$pr_info" | jq -r '.number // empty')
+if [[ -n "$pr_number" ]] && pr_has_auto_merge "$pr_number"; then
+  echo "PR #$pr_number has auto-merge enabled, skipping merge from next"
+  exit 0
 fi
 
 # Check if branch exists