+ # Before we add the 'en' fallback for messages, keep a copy of
+ # the original fallback sequence
+ $coreData['originalFallbackSequence'] = $coreData['fallbackSequence'];
+
+ # Ensure that the sequence ends at 'en' for messages
+ if ( !$len || $coreData['fallbackSequence'][$len - 1] !== 'en' ) {