There seems to be 3 modes for editing Subgraphs.
- Normal, outside shape selected, allowing connecting to internal magnets.
- Subgraph as active shape.
- Subgraph double clicked, so that everything else is greyed out.
If I edit a subgraph adding a connection between two internal shapes, when collapsing the shape this new internal connection becomes an external connection.
How should I be editing a subgraph so that it can be collapsed nicely?