$ git clone -n https://gitee.com/zhoujiajia111/grub2.git /var/lib/mock/dist-an23.3-build-454260-73625/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23.3-build-454260-73625/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 5257b67cc7b0367df2e336c3da142bb7df940f66:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/grub2
 * [new ref]         5257b67cc7b0367df2e336c3da142bb7df940f66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5257b67 fix cve