It turns out that sage/combinat/... uses the implicit assumption that SymmetricFunctions(...) is a strongly cached object, i.e., that it will persist in memory forever. But #12215 turns `UniqueRepresentation` into a weak cache.
I don't know if it is a good solution on the long run, but for now, I simply made SymmetricFunctions strongly cached, and that was enough to solve the problem. Sorry for the noise. Simon -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
