graph.count.isomorphisms.vf2 does not take vertex colors into account in the R interface

[Tamás Nepusz]

This was reported in email by Moses Boudourides, thanks.

Example:

library(igraph)

g <- graph.full(3)
path <- graph.ring(3, circular=F)
V(g)$color <- c(1,1,2)
V(path)$color <- c(1,2,1)
graph.count.subisomorphisms.vf2(g, path)

This gives 6. Obviously the correct answer would be 2 if we take the colors into account.

[Gábor Csárdi (gabor.csardi)]

Fixed in revision #2906 (0.6-main) and #2913 (0.7-main).

[Gábor Csárdi (gabor.csardi)]

The development of igraph has moved to github, so please do not comment on this bug here. You are of course welcome to comment on github, here:
https://github.com/igraph/igraph/issues/115