$ git clone -n https://gitee.com/src-opencloudos-rpms/grub2.git /var/lib/mock/dist-oc8-build-125442-74984/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-oc8-build-125442-74984/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 4913aa5ac8472ccd05b6a8764ce724e1056a62ae:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/grub2
 * [new ref]         4913aa5ac8472ccd05b6a8764ce724e1056a62ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4913aa5 import grub2-2.02-162.tl3.ap.1