Parallel Graph: redistribute() does not compile for bidirected graphs

[Christoph Koke <c.koke@…>]

Trying to to use redistribute on a adjacency_list with the bidirectionalS tag leeds to compile erros.

I tracked down the problem to the point, that there is a additional internal property on vertices for this type of graphs. This property is not properly handeled during the call of redistribute. Attached is a patch including a test.