$ git clone -n https://gitee.com/lxpzero/grub2.git /var/lib/mock/dist-an23-build-373515-71458/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-373515-71458/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin OCS-grub2:KOJI_FETCH_HEAD
From https://gitee.com/lxpzero/grub2
 * [new branch]      OCS-grub2  -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76f3b24 ocs grub2 test