MagicDraw/Cameo: If you drag a Behavior from the model browser onto the SYMBOL of a State (that does not already own the Behavior) and set it as an 'entry', 'doActivity', or 'exit' Behavior a "wrapper" Behavior owned by the State will be created.

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In this case, the State does not "steal ownership" of the Behavior (you'll see it is still in the same place in the containment tree). Instead, a "wrapper" Behavior is created, that is owned by the state, and merely delegates to the original "external" Behavior.

Be especially wary of this when dealing with export to Modelica!

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