* src/graph/graph_extended_clustering.cc (GraphInterface::SetExtendedClusteringToProperty): init vector_property_map size, so that access becomes thread safe.

* src/graph/graph_clustering.cc (GraphInterface::SetLocalClusteringToProperty): init vector_property_map size, so that access becomes thread safe.


git-svn-id: https://svn.forked.de/graph-tool/trunk@115 d4600afd-f417-0410-95de-beed9576f240