$ git clone -n https://gitee.com/yan1hcdc/grub2.git /mnt/mock/kojid//dist-an23.5-riscv-build-540878-85061/root/chroot_tmpdir/scmroot/grub2
Cloning into '/mnt/mock/kojid//dist-an23.5-riscv-build-540878-85061/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/grub2
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 930715a fix several implicit function declarations