When merging few networks the interactions between disperse nodes become duplicated
if e.g I gave APP - PSEN1 in several networks..
As I understand your example, the merge function didn't create that edge - you did. It wouldn't be possible for a Model because only the place could be disperse and I check for duplicate edges for disperse places so it could only happen in a Diagram, in which case duplicates are allowed.
I could add an option to the merge function for Diagrams that will only allow up to one edge of each type (genetic, physical, undefined) to exist for each pair of nodes in the final network?
Hmm let's think about it..
maybe this option to have only one edge of each type would be good...
its not super urgent though