(overlap_)blockmodel.py: Convert clabel to "int" type

src/graph_tool/community/blockmodel.py

@@ -181,7 +181,7 @@ class BlockState(object):
 
         if clabel is not None:
             if isinstance(clabel, PropertyMap):
-                self.clabel = self.g.own_property(clabel.copy())
+                self.clabel = self.g.own_property(clabel.copy("int"))
             else:
                 self.clabel = self.g.new_vertex_property("int")
                 self.clabel.a = clabel

src/graph_tool/community/overlap_blockmodel.py

@@ -206,7 +206,7 @@ class OverlapBlockState(BlockState):
                 if _bm_test():
                     assert len(clabel.a) < self.g.num_vertices()
                 self.clabel = self.node_index.copy()
-                pmap(self.clabel, clabel)
+                pmap(self.clabel, clabel.copy("int"))
             else:
                 # if clabel is an array, we will assume it constraints the *half-edges*
                 self.clabel = self.g.new_vertex_property("int")