$ git clone -n https://gitee.com/src-anolis-os/grub2.git /var/lib/mock/dist-an23-build-555004-89281/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-555004-89281/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 385a61dd8b99a97e2749530200292ff9a9d4e190:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/grub2
 * [new ref]         385a61dd8b99a97e2749530200292ff9a9d4e190 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 385a61d nx: align EFI memory attributes handling