Graphic is not reset when color EQ module is reset

[RawConvert]

ubuntu 20.04 R&Dt 3.9.0+1647~gebb12ab06 color EQ branch
i7 NO GPU

To reproduce - increase a slider for saturation or brightness, see the graphic change, click reset, slider resets, graphic doesn't.

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[RawConvert]

Gutted to see this is no.5 rather than no.1

[aurelienpierre]

Gutted to see this is no.5 rather than no.1

LOL.

Color EQ is still heavily experimental, I would like feedback only on the color/pixel behaviour for now. GUI stuff is cosmetic and can be fixed anytime.