$ git clone -n https://gitee.com/src-opencloudos-rpms/rear.git /var/lib/mock/dist-oc9-build-238232-82518/root/chroot_tmpdir/scmroot/rear
Cloning into '/var/lib/mock/dist-oc9-build-238232-82518/root/chroot_tmpdir/scmroot/rear'...
$ git fetch origin d2db9f4f2c795bc150154e5b365b9abc801eb713:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rear
 * [new ref]         d2db9f4f2c795bc150154e5b365b9abc801eb713 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2db9f4 import rear-2.6-9.tl4