$ git clone -n https://gitee.com/happy_orange/systemd.git /var/lib/mock/dist-an23-build-192877-60812/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23-build-192877-60812/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin 7828c00e9a889ba8a5b55a5decbbdf5d118acf6d:KOJI_FETCH_HEAD
From https://gitee.com/happy_orange/systemd
 * [new ref]         7828c00e9a889ba8a5b55a5decbbdf5d118acf6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7828c00 update to 252.4