Bugfix: init the reset-type variable. Found by Tamer Fahmy. Also adds a code comment about the flaws of the bbox accumulation strategy.
Bugfix: init the reset-type variable. Found by Tamer Fahmy. Also adds a code comment about the flaws of the bbox accumulation strategy.

Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D