Sometimes when swipe-opening the reveal cell, there's a brief white flash

[FramusRock]

Sometimes when you swipe-open the reveal cell (and it might happen more ofthen when doing it with a fast flick), there's a white flash and the cell's content completely disappears for a split second.

Then it reappears again and everything is working fine.

I've seen this on both iOS 7 and 8, Device and Simulator.