Reopening this one. The origin of objects has reverted to being {0,0} instead of {0.5,0.5} as of 0.132

I assume this is talking about the RenderTransformOrigin. I couldn't repro this besides in the animation when animating RenderTransform for the first time. Should be fixed with r16955. Feel free to reopen if still happens.

This is moreso about us changing the Framework default origin to be centre-centre than top-left.
So this has to do with a fundamental change, rather than us auto-centering the Origin when a user makes a Transform change.

Re-opening until we make a decision on if this is even feasible or should be considered at all.