if (option_single_branch && !option_mirror) {
			if (option_branch) {
				if (starts_with(our_head_points_at->name, "refs/tags/"))
					strbuf_addf(&value, "+%s:%s", our_head_points_at->name,
						our_head_points_at->name);
				else
					strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name,
						branch_top->buf, option_branch);
			} else if (remote_head_points_at) {
				const char *head = remote_head_points_at->name;
				if (!skip_prefix(head, "refs/heads/", &head))
					BUG("remote HEAD points at non-head?");

				strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name,
						branch_top->buf, head);
			}
			/*
			 * otherwise, the next "git fetch" will
			 * simply fetch from HEAD without updating
			 * any remote-tracking branch, which is what
			 * we want.
			 */
		} else {
			strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf);
		}
		/* Configure the remote */
		if (value.len) {
			strbuf_addf(&key, "remote.%s.fetch", remote_name);
			repo_config_set_multivar(the_repository, key.buf, value.buf, "^$", 0);
			strbuf_reset(&key);

			if (option_mirror) {
				strbuf_addf(&key, "remote.%s.mirror", remote_name);
				repo_config_set(the_repository, key.buf, "true");
				strbuf_reset(&key);
			}
		}