$ git clone -n https://gitee.com/src-opencloudos-rpms/rhc.git /var/lib/mock/dist-oc8-build-252615-84211/root/chroot_tmpdir/scmroot/rhc
Cloning into '/var/lib/mock/dist-oc8-build-252615-84211/root/chroot_tmpdir/scmroot/rhc'...
$ git fetch origin 7549e0595fe27517b62e726bb91130b7e68fde54:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rhc
 * [new ref]         7549e0595fe27517b62e726bb91130b7e68fde54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7549e05 import rhc-0.2.5-12.tl3