$ git clone -n https://gitee.com/pkm031/grub2.git /var/lib/mock/dist-an23-build-514100-75110/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-514100-75110/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 7160d307c40d078899682970f3729044a765b01c:KOJI_FETCH_HEAD
From https://gitee.com/pkm031/grub2
 * [new ref]         7160d307c40d078899682970f3729044a765b01c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7160d30 Fix grub2 relocation overflow error when booting on numa configurations