$ git clone -n https://gitee.com/shineways/systemd.git /var/lib/mock/dist-an23-build-448620-73412/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23-build-448620-73412/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin e0e647631c9097e8e0422cd75abea186f31e2187:KOJI_FETCH_HEAD
From https://gitee.com/shineways/systemd
 * [new ref]         e0e647631c9097e8e0422cd75abea186f31e2187 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0e6476 Revert "udev: use bfq as the default scheduler"