Gestures change origin to center,center

[nibynool]

I am currently using the canvas.toJSON() function to export my canvas to a server side rendering system and I have noticed that after performing a gesture (zoom or rotate) the origin is always changes from top,left to center,center.

I believe this is caused by the _setOriginToCenter() function call within __gesturesRenderer() in the canvas_gestures mixin.

From my limited testing it seems that the origin can be reset by calling _setCenterToOrigin() just prior to the call to renderAll().