$ git clone -n https://src.fedoraproject.org/rpms/arpack.git /var/lib/mock/f29-build-6462-1586/root/thebuilddir/tmp/scmroot/arpack
Cloning into '/var/lib/mock/f29-build-6462-1586/root/thebuilddir/tmp/scmroot/arpack'...
$ git reset --hard 63062cd41cb6de53dfce125a020e1e9d142966c6
HEAD is now at 63062cd - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild