$ git clone -n https://gitee.com/jgmu/omnispace-release.git /var/lib/mock/dist-an8.9-build-370514-71163/root/chroot_tmpdir/scmroot/omnispace-release
Cloning into '/var/lib/mock/dist-an8.9-build-370514-71163/root/chroot_tmpdir/scmroot/omnispace-release'...
$ git fetch origin c456c20430322399d4021b5e1f0bf85835ff6980:KOJI_FETCH_HEAD
From https://gitee.com/jgmu/omnispace-release
 * [new ref]         c456c20430322399d4021b5e1f0bf85835ff6980 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c456c20 init repo