$ git clone -n https://gitee.com/zhaohang_mskdxl/byacc.git /var/lib/mock/dist-an23.3-build-420998-72884/root/chroot_tmpdir/scmroot/byacc
Cloning into '/var/lib/mock/dist-an23.3-build-420998-72884/root/chroot_tmpdir/scmroot/byacc'...
$ git fetch origin b9824621f52226737c6d5ed51ecd4e4d2afafc70:KOJI_FETCH_HEAD
From https://gitee.com/zhaohang_mskdxl/byacc
 * [new ref]         b9824621f52226737c6d5ed51ecd4e4d2afafc70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b982462 update to byacc-2.0.20230521