Last Ack Returns Base State Actor When Actor Stops on Error

[niACS]

If a state pattern actor stops on error, the calling actor will receive a Last Ack with a State Actor class, instead of the actual actor.

As shown here, when Actor Core returns an error, the To More Specific Class cast will not execute, and will just return a default State Actor.

To More Specific Class should ALWAYS execute. It should never fail, but it is acceptable to merge any error with the error output of Actor Core. The Actor Core error should take precedence.

[niACS]

Here is the implementation:

[niACS]

I have also added a unit test that supports this change: test Last Ack_Error_Returns Context Actor.vi