$ git clone -n https://gitee.com/streamlet_hy/grub2.git /var/lib/mock/dist-an23.2-build-421111-72903/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23.2-build-421111-72903/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 83a26f5a2f30df5a4f4a406d3f4c3692cbd56811:KOJI_FETCH_HEAD
From https://gitee.com/streamlet_hy/grub2
 * [new ref]         83a26f5a2f30df5a4f4a406d3f4c3692cbd56811 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83a26f5 In package grub2-efi-loongarch64, provide grub2