Prevent exponential growth of length of edges in clusters
edgelabel_ranks
gets called for the root graph and all of its cluster
subgraphs. It should only double ED_minlen
for each edge once. Reverting the
test for labeled edges to check only the active graph, rather than its root,
prevents it from expanding the minlen
once for every level of cluster
containing the edge.
Fixes #1246 (closed)