Hi Pratheek,
I had already implemented get_copy method but it will work fine with first time trigger, second time onward it will failure.
This issue has been solved .. After I call my IMPL class, just create a dummy event and call any method which will hit your impl class then you will see definitely all the record will present in your me->collection_wrapper .(even called by get_p method).
Can say after refresh, the original collection wrapper will be triggering.
Thanks and Regards,
Kali Charan sahu