Changing any aspect of a Text object, such as the font size or content, wouldn't update its hitArea if it had been enabled for input, causing it to carry on using the old hit area size. Now, as long as the Text was created _without_ a custom hitArea, the hitArea size will be changed to match the new texture size on update. If you have provided your own custom hitArea shape, you need to modify it when the Text changes size yourself. Fix phaserjs#4456

Author: photonstorm

src/gameobjects/text/static/Text.js

@@ -1237,6 +1237,14 @@ var Text = new Class({
 
         this.dirty = true;
 
+        var input = this.input;
+
+        if (input && !input.customHitArea)
+        {
+            input.hitArea.width = this.width;
+            input.hitArea.height = this.height;
+        }
+
         return this;
     },