$ git clone -n https://src.fedoraproject.org/rpms/pcb.git /var/lib/mock/f29-build-5210-1242/root/thebuilddir/tmp/scmroot/pcb
Cloning into '/var/lib/mock/f29-build-5210-1242/root/thebuilddir/tmp/scmroot/pcb'...
$ git reset --hard 18492b245c536179a879c0bdb64c66991f2df128
HEAD is now at 18492b2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild