Problem with parallel MI tasks:
Setting:

• define an execution listener (start and end event) on a parallel multi instance task with 5 iterations

Current behavior:

• execution listener "start event" is called five times, once with the ScopeExecution and four times with the concurrent executions (this is ok)
• execution listener with event "null" is called for four ConcurrentExecutions
• execution listener "end event" is called two times: once with a ConcurrentExecution, once with the scope execution

Problem with sequential MI tasks:
Setting:

• define an execution listener (start and end event) on a sequential multi instance task with n iterations

Current behavior:

• listener is invoked n times with start event
• listener is invoked 1 times with end event

Desired behavior:

• end listener is also invoked n times