$ git clone -n https://gitee.com/qu_zhi_yuan/swclang.git /var/lib/mock/dist-an23-build-447326-73363/root/chroot_tmpdir/scmroot/swclang
Cloning into '/var/lib/mock/dist-an23-build-447326-73363/root/chroot_tmpdir/scmroot/swclang'...
$ git fetch origin bf449303f908edf11ac2490739e5c371ad52c822:KOJI_FETCH_HEAD
From https://gitee.com/qu_zhi_yuan/swclang
 * [new ref]         bf449303f908edf11ac2490739e5c371ad52c822 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf44930 first commit