Canvas: fix tint undo/redo.

Author: PhaserEditor2D

source/phasereditor/phasereditor.canvas.core/src/phasereditor/canvas/core/BaseSpriteModel.java

@@ -92,7 +92,7 @@ public String getTint() {
 	}
 
 	public void setTint(String tint) {
-		if (tint.equals(TINT_0X000000)) {
+		if (TINT_0X000000.equals(tint)) {
 			_tint = null;
 		} else {
 			_tint = tint;

source/phasereditor/phasereditor.canvas.ui/src/phasereditor/canvas/ui/shapes/BaseSpriteControl.java

@@ -113,7 +113,9 @@ protected void updateTint() {
 
 		String tint = getModel().getTint();
 
-		if (tint != null) {
+		if (tint == null) {
+			node.setEffect(null);
+		} else {
 			Blend multiply = new Blend(BlendMode.MULTIPLY);
 
 			double width = getTextureWidth();