[Bug,csc]Choran Minigunner gets temp atk at end turn instead of opponent's start turn

OGC used "End turn:" triggers to allow things to happen at the start of the opponent's turn. However, it appears that NGC presently actually executes those commands at the end of the owner's turn. This means that temporary stats gained at End turn: will wear off immediately. This afflicts:

Rudi Key
Resilient Nightengale
Cloudborne Academy
Choran Minigunner
Mechazor Four

I'm not sure if this is really a bug or if it's just a substantial oversight. It may be worth having a "Start of opponent's turn:" trigger added to the game, possibly worded better so it doesn't take so much card space.