making sure we don't re-enter this.OnInvalidate unless explicitly for properties

issue: MatterHackers/MCCentral#4965
Rebuild should directly call base.OnInvalidate to prevent re-entering this.OnInvalidate

MatterControlLib/DesignTools/Primitives/ImageObject3D.cs

@@ -101,7 +101,7 @@ namespace MatterHackers.MatterControl.DesignTools
 					}
 
 					// send the invalidate on image change
-					Invalidate(InvalidateType.Image);
+					Parent?.Invalidate(new InvalidateArgs(this, InvalidateType.Image));
 				}
 
 				return _image;