Strange behavior in rALF Papyrus integration when changing selection between behaviors

[abelhegedus]

In the PingPongAdvanced model:

• open the model tree in the Model Explorer to see both state entry actions in the two state machines
• select one, change to the rALF body in the properties view
• select the other, change to the rALF body in the properties view
• select the first one again, the this->ping or this->pong part will show an error
• changing the selection back and forth keeps showing errors

It may be a Papyrus bug or some other issue preventing a correct context to be used.

[ujhelyiz]

Even worse, it is possible that a modification gets written to a different model element...

[ujhelyiz]

These issues are most likely caused by the fact that the DirectEditorConfiguration class has a very long lifecycle (it is possibly a singleton), but the editing context has a much shorter lifespan. Somehow these pieces of context information can leak into each other unexpectedly, wreaking havoc in the user model.