struct ref *ref_cpy;
 
        fetch_pack_setup();
-       memcpy(&args, my_args, sizeof(args));
+       if (&args != my_args)
+               memcpy(&args, my_args, sizeof(args));
        if (args.depth > 0) {
                if (stat(git_path("shallow"), &st))
                        st.st_mtime = 0;
                          )
                        die("shallow file was changed during fetch");
 
-               fd = hold_lock_file_for_update(&lock, shallow, 1);
+               fd = hold_lock_file_for_update(&lock, shallow,
+                                              LOCK_DIE_ON_ERROR);
                if (!write_shallow_commits(fd, 0)) {
                        unlink(shallow);
                        rollback_lock_file(&lock);