Workaround for the "catalan" bug. This leaves blank language

when it has not been set. Which is correct in my opinion, and
default language is used (but not set) instead.

src/options_display.php

@@ -46,7 +46,7 @@ function load_optpage_data_display() {
         'save'    => 'save_option_theme'
     );
 
-    $language_values = array();
+    $language_values = array('');
     foreach ($languages as $lang_key => $lang_attributes) {
         if (isset($lang_attributes['NAME'])) {
             $language_values[$lang_key] = $lang_attributes['NAME'];