$ git clone -n git://pkgs.fedoraproject.org/rpms/tclabc /var/lib/mock/f29-build-5252-1257/root/thebuilddir/tmp/scmroot/tclabc
Cloning into '/var/lib/mock/f29-build-5252-1257/root/thebuilddir/tmp/scmroot/tclabc'...
$ git reset --hard 5d740c468942c1b8e08ac5ab3bb6c9992ac0981b
HEAD is now at 5d740c4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild