feat(merge-git-remote): refactor remote fetch and merge logic for clarity and robustness

bin/merge-git-remote

@@ -16,7 +16,8 @@ merge-git-remote() {
             key=$(echo "$line" | awk '{print $1}')
             value=$(echo "$line" | awk '{print $2}')
             remote_name="${key##remotes.$git_folder.}"
-            echo "  Adding remote '$remote_name' -> $value"
+            
+            echo "Adding remote '$remote_name' -> $value"
             git -C "$git_folder" remote add "$remote_name" "$value" 2>/dev/null || \
                 git -C "$git_folder" remote set-url "$remote_name" "$value"
             git -C "$git_folder" fetch -q "$remote_name"
@@ -35,17 +36,27 @@ merge-git-remote() {
             git -C "$git_folder" fetch -q origin
         fi
 
+        # Fetch the refs from remote
         while IFS= read -r line; do
             local key merge_ref remote_name tmp_ref
             key=$(echo "$line" | awk '{print $1}')
             merge_ref=$(echo "$line" | awk '{print $2}')
             remote_name="${key##merge.$git_folder.}"
-            echo "  Merging $remote_name/$merge_ref"
+
+            echo "Fetch ref $merge_ref from $remote_name"
+            git -C "$git_folder" fetch "$remote_name" "$merge_ref:$merge_ref"
+
+        done < <(git config -f .gitmodules --get-regexp "merge\.$git_folder\.")
+
+        # Merge refs into merge branch
+        while IFS= read -r line; do
+            local key merge_ref remote_name tmp_ref
+            key=$(echo "$line" | awk '{print $1}')
+            merge_ref=$(echo "$line" | awk '{print $2}')
+            remote_name="${key##merge.$git_folder.}"
+
+            echo "Merging ref $merge_ref"
             tmp_ref="refs/merge-tmp/${remote_name}-$(echo "$merge_ref" | tr '/' '-')"
-            if ! git -C "$git_folder" fetch -q "$remote_name" "$merge_ref:$tmp_ref"; then
-                echo "  !! Could not fetch $merge_ref from $remote_name — skipping"
-                continue
-            fi
             if ! git -C "$git_folder" merge -q --no-edit "$tmp_ref"; then
                 echo "  !! Merge conflict in $git_folder ($remote_name/$merge_ref) — resolve manually"
             fi