$ git clone -n https://gitee.com/bluevalley/grub2.git /var/lib/mock/dist-an23.2-build-440166-73131/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23.2-build-440166-73131/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 5374ab23a702c8db88855c186cdab158da7bc39a:KOJI_FETCH_HEAD
From https://gitee.com/bluevalley/grub2
 * [new ref]         5374ab23a702c8db88855c186cdab158da7bc39a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5374ab2 Use proper memory type for kernel allocation