$ git clone -n https://gitee.com/alpha-wang/systemd.git /var/lib/mock/dist-an23-build-487597-74420/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23-build-487597-74420/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin c674bdbb3eea6819c047e79581054af4c174e9a0:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/systemd
 * [new ref]         c674bdbb3eea6819c047e79581054af4c174e9a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c674bdb rules: automatically modprobe sg drive