$ git clone -n https://gitee.com/lzq11122/systemd.git /var/lib/mock/dist-an23-build-452536-73514/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/dist-an23-build-452536-73514/root/chroot_tmpdir/scmroot/systemd'...
$ git fetch origin e6007edf81e398669296613163cf485e8d1a12b7:KOJI_FETCH_HEAD
From https://gitee.com/lzq11122/systemd
 * [new ref]         e6007edf81e398669296613163cf485e8d1a12b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6007ed test