$ git clone -n https://gitee.com/geliwei/grub2.git /var/lib/mock/dist-an23-build-553403-89038/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-553403-89038/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 27cdc3f9d9d48de8c7f670b4ba98e3b95be95b20:KOJI_FETCH_HEAD
From https://gitee.com/geliwei/grub2
 * [new ref]         27cdc3f9d9d48de8c7f670b4ba98e3b95be95b20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27cdc3f fix: CVE-2024-45781 - Add symlink length validation in UFS filesystem