$ git clone -n https://gitee.com/mgb01105731/grub2_1.git /var/lib/mock/dist-an23-build-353114-71012/root/chroot_tmpdir/scmroot/grub2_1
Cloning into '/var/lib/mock/dist-an23-build-353114-71012/root/chroot_tmpdir/scmroot/grub2_1'...
$ git fetch origin 7dbf629038c2b747cce30b7ce29bbbaccb0a0c5c:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/grub2_1
 * [new ref]         7dbf629038c2b747cce30b7ce29bbbaccb0a0c5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7dbf629 fix CVE-2023-4692 and CVE-2023-4693