MC-30586: TinyMCE4: some HTML code breaks the editor

- fix max-depth

Author: Oleksandr Dubovyk

lib/web/mage/adminhtml/wysiwyg/tiny_mce/plugins/magentowidget/editor_plugin.js

@@ -174,12 +174,13 @@ define([
                         if (attributes.id) {
                             try {
                                 widgetCode = Base64.idDecode(attributes.id);
-                                if (widgetCode && widgetCode.indexOf('{{widget') !== -1) {
-                                    result = widgetCode;
-                                }
                             } catch (e) {
                                 // Ignore and continue.
                             }
+
+                            if (widgetCode && widgetCode.indexOf('{{widget') !== -1) {
+                                result = widgetCode;
+                            }
                         }
 
                         return result;