Boundary Event associated to a User Task is listening for the signal even when the User Task is not active

Issue

• It has been observed that Boundary Event associated to a User Task is listening for the signal even when the User Task is not active. To prove this behavior , attached is a sample jBPM6 Project which can be imported in JBDS or any Eclipse based IDE and execute the ProcessMain.java class to reproduce the problem. Is this expected behaviour?
• In short the process which has the following sequence of flows can cause the problem upon receiving the signal.

Start -> Signal -> XOR gateway (Converging) -> Script Task -> User task 
(having a Boundary Event) -> End

 User task (having a Boundary Event) -> XOR gateway (Converging) -> Script Task -> User task (having a Boundary Event) -> End

As it can be seen from above flows there are two signal events and they both use the same SignalRef SignalOne , and when the process is instantiated it waits for signal to continue moving forward. Now, the problem is that when the process instance is signalled , it is observed that the script task is executed twice.