🔧 Only set duration if required

kwin/kwin4_effect_hexagon/onSettingsChanged.js

@@ -2,6 +2,7 @@
 // The code below is called whenever the user changes something in the configuration of
 // the effect.
 
+effect.setUniform(this.shader, 'uDuration', this.duration * 0.001);
 effect.setUniform(this.shader, 'uAdditiveBlending',
                   effect.readConfig('AdditiveBlending', true));
 effect.setUniform(this.shader, 'uScale', effect.readConfig('Scale', 1.0));