'protected’ implementation in Actionscript 3 is BROKEN

Consider following code:

Theoretically, the call at line no. 13 should not cause any error as count is defined for testObj as a field in SubClass, but it gives a Cannot create property count on SubClass. Interestingly if we move modifyProperty method to SubClass or make count public, it works without any error.

So it can be said that we cannot access protected fields dynamically in a subclass.

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