[ActivityDiagram] Drop from modelExplorer doesn't work for Activities owned by Activity#ownedBehavior

Bugzilla Link	582902
Status	NEW
Importance	P3 normal
Reported	Feb 05, 2024 04:24 EDT
Modified	Feb 05, 2024 04:29 EDT
Version	0.7.0

Description

Steps to reproduce:

1. Create a new Papyrus-Sirius Activity Diagram
2. from the ModelExplorer, create an Activity inside the Activity. This new activity must be referenced by the feature ownedBehavior.
3. try to drop this Activity in the Diagram -> it doesn't work.

NB : If the new Activity is owned by Activity#nestedClassifier, all works fine.