$ git clone -n https://gitee.com/zhoujiajia111/grub2.git /var/lib/mock/dist-an23-build-465163-73941/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-465163-73941/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin feb38bc6eff1acea2c1956617258133e86decfb1:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/grub2
 * [new ref]         feb38bc6eff1acea2c1956617258133e86decfb1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at feb38bc add patch to fix cve