$ git clone -n https://src.fedoraproject.org/rpms/byaccj.git /var/lib/mock/f31-build-62918-29269/root/chroot_tmpdir/scmroot/byaccj
Cloning into '/var/lib/mock/f31-build-62918-29269/root/chroot_tmpdir/scmroot/byaccj'...
$ git reset --hard b905a70bb520e93bef7827f4fccf2f7ea7d9b182
HEAD is now at b905a70 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild