[FIX] diagram_plus: Avoid infinit recursion/loop when computing diagram
At this moment, as temporary solution, if infinite recursion/loop detected, then system will raise error (which is better than hanging forever).
In future versions we will try to fix this in better way (without error)
The following route could could be used to reproduce this error:
| From | To |
|---|---|
| New | Some node |
| Other Branch 1 | Closed |
| Other Branch 1 | Other branch 2 |
| Bad Node | Closed |
| Other branch 2 | Closed |
| Bad Node | Some node |
| Some node | Other Branch 1 |
The bad route in this example is from Some node to Other Branch1