sha1_to_hex(mp->remote));
        }
        diff_flush(&opt);
-       diff_tree_release_paths(&opt);
+       free_pathspec(&opt.pathspec);
 
        *num_changes = len;
        return changes;
                       sha1_to_hex(mp->local));
        }
        diff_flush(&opt);
-       diff_tree_release_paths(&opt);
+       free_pathspec(&opt.pathspec);
 }
 
 static void check_notes_merge_worktree(struct notes_merge_options *o)