$ git clone -n https://gitee.com/zhaohang_mskdxl/byacc.git /var/lib/mock/dist-an23.3-build-419022-72882/root/chroot_tmpdir/scmroot/byacc
Cloning into '/var/lib/mock/dist-an23.3-build-419022-72882/root/chroot_tmpdir/scmroot/byacc'...
$ git fetch origin 6ba922662a274b0b716edea9405a450751c30fb5:KOJI_FETCH_HEAD
From https://gitee.com/zhaohang_mskdxl/byacc
 * [new ref]         6ba922662a274b0b716edea9405a450751c30fb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ba9226 update to byacc-2.0.20230521