ISTWCMS-5880: only load styles from the default group, which contains the...

ISTWCMS-5880: only load styles from the default group, which contains the section widths - needed for when other section styles ship

uw_cfg_common.module

@@ -604,13 +604,17 @@ function _uw_cfg_common_get_layout_builder_styles(
 
   // Get all the styles for sections.
   $all_styles = _layout_builder_styles_retrieve_by_type('section');
-
   // Array of options.
   $options = [];
 
   // Step through each style and get the info.
   foreach ($all_styles as $style) {
-    $options[$style->id()] = $style->label();
+    // Only load styles from the "default" group,
+    // which contains the section widths.
+    // Needed for when other section styles ship.
+    if ($style->getGroup() == 'default') {
+      $options[$style->id()] = $style->label();
+    }
   }
 
   return $options;