$ git clone -n https://gitee.com/mgb01105731/grub2_2.git /var/lib/mock/dist-an23-build-540832-85026/root/chroot_tmpdir/scmroot/grub2_2
Cloning into '/var/lib/mock/dist-an23-build-540832-85026/root/chroot_tmpdir/scmroot/grub2_2'...
$ git fetch origin 622be0a592dcba80395cd9f19389593c95f4dbf3:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/grub2_2
 * [new ref]         622be0a592dcba80395cd9f19389593c95f4dbf3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 622be0a Rebuild riscv with gcc14