[core] Replace not working for sets

Problem description

When using the replace function with sets of Nodes in input (not GraphViews) and there are several inputs or output for both sets (the same number, of course) as the set is not ordered there is no way to predict or control which former Input (or Output) will be linked with which new Input (or Output) the result is random and such cases may lead to incoherence in the new Model.l'utilisateur.

Possible solutions

• Limit (or remove) the replace variant using sets of Nodes