$ git clone -n https://gitee.com/lizhao2025/byacc.git /var/lib/mock/dist-an23-build-499708-74764/root/chroot_tmpdir/scmroot/byacc
Cloning into '/var/lib/mock/dist-an23-build-499708-74764/root/chroot_tmpdir/scmroot/byacc'...
$ git fetch origin b0b2838fd26bc16e32313ad7d39d10695484bf61:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/byacc
 * [new ref]         b0b2838fd26bc16e32313ad7d39d10695484bf61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0b2838 Update code from upstream