Knob::evaluateValueChange: fix bug introduced in d27f94b523e634698022ff08cdf142814322c516 (easy to find now that there are no more inverse values, like isSignificant and isInsignificant)
Knob::evaluateValueChange: fix bug introduced in d27f94b523e634698022ff08cdf142814322c516 (easy to find now that there are no more inverse values, like isSignificant and isInsignificant)

Endika/Natron,Endika/Natron,Endika/Natron