$ git clone -n https://gitee.com/zhuzhustu/rear.git /var/lib/mock/dist-an23-build-523097-76841/root/chroot_tmpdir/scmroot/rear
Cloning into '/var/lib/mock/dist-an23-build-523097-76841/root/chroot_tmpdir/scmroot/rear'...
$ git fetch origin 5abf4a2fff2ff9802924ea3d8cc4ae6b29b1abcb:KOJI_FETCH_HEAD
From https://gitee.com/zhuzhustu/rear
 * [new ref]         5abf4a2fff2ff9802924ea3d8cc4ae6b29b1abcb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5abf4a2 remove useless lines