$ git clone -n https://gitee.com/mgb01105731/grub2_3.git /var/lib/mock/dist-an23.1-devel-build-368089-71324/root/chroot_tmpdir/scmroot/grub2_3
Cloning into '/var/lib/mock/dist-an23.1-devel-build-368089-71324/root/chroot_tmpdir/scmroot/grub2_3'...
$ git fetch origin 125fc04cad52298cff48364bbe96f9fc5afb8fe7:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/grub2_3
 * [new ref]         125fc04cad52298cff48364bbe96f9fc5afb8fe7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 125fc04 update to 2.12