$ git clone -n https://gitee.com/src-anolis-os/grub2.git /var/lib/mock/dist-an7-updates-build-90905-44210/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an7-updates-build-90905-44210/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard origin/a7
HEAD is now at 640d04f update to grub2-2.02-0.87.el7_9.9