$ git clone -n https://gitee.com/zhaoyun1215/leapp-test.git /var/lib/mock/dist-oc8-build-124192-73773/root/chroot_tmpdir/scmroot/leapp-test
Cloning into '/var/lib/mock/dist-oc8-build-124192-73773/root/chroot_tmpdir/scmroot/leapp-test'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/zhaoyun1215/leapp-test
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2471740 init