Rotation and flipping cancels "Peak Flat Scan" and "Before/After" preview.

[linkmodo]

Rotation and Flipping actions cancels "Peak Flat Scan" and "Before/After".

Do we want to keep it that way (cancel preview and peak after image rotation/flipping) or make it persist as long as user is staying on the same image?

[marcinz606]

I don't have strong opinion on this but maybe it should persist as long as flat/before is toggled

[linkmodo]

Perfect, #591 addresses the issue.