I am not knowledgeable in koine Greek. However, I found this article interesting.
http://ecommons.udayton.edu/cgi/viewcontent.cgi?article=1197&context=marian_studies
It is a scholarly piece.
Again, not a scholar, but another interesting piece.
If I unload 200 bu wagon load of grain into a 1000 bu bin which had been empty I have completely unloaded that wagon. It wasn't the wagon that unloaded itself but it was I who did it. When I completed unloading that wagon it was complete and wouldn't need to be done again. That did NOT fill that 1000bu bin.