$ git clone -n https://gitee.com/wenyuzifang/seabios.git /var/lib/mock/dist-an23-build-487093-74390/root/chroot_tmpdir/scmroot/seabios
Cloning into '/var/lib/mock/dist-an23-build-487093-74390/root/chroot_tmpdir/scmroot/seabios'...
$ git fetch origin 7c928ad5ca80497178c37e7dd141fe56645affe6:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/seabios
 * [new ref]         7c928ad5ca80497178c37e7dd141fe56645affe6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c928ad Update code from upstream