Followup: make sure that defualt value is applied in RTE

src/Umbraco.Web.UI.Client/src/views/propertyeditors/rte/rte.controller.js

@@ -30,6 +30,9 @@ angular.module("umbraco")
             var stylesheets = [];
             var styleFormats = [];
             var await = [];
+            if (!editorConfig.maxImageSize) {
+                editorConfig.maxImageSize = tinyMceService.defaultPrevalues().maxImageSize;
+            }
 
             //queue file loading
             if (typeof tinymce === "undefined") { // Don't reload tinymce if already loaded