scaling issue in player

[dericed]

from #729

I see one more player layout error:

• open a 4/3 file
• enable 2nd filter (defaults to waveform), looks like
  
• switch mode to "Free Scale" and resize with slider and then set back to "Fit to Screen", image should be same as end of last step
• enable the third filter (defaults to bitplane), and then it looks like
  
• can fix with toggle to "Free Scale" and back to "Fit to Screen"
  

btw: these tests ^^^ were with the qt5 build env

[ElderOrb]

@dericed is it still an issue ?

[dericed]

fixed, thx :)