Multi-lang filter can flag a text as not being cacheable

filter/multilang/multilang.php

@@ -48,6 +48,8 @@ if (function_exists($textfilter_function)) {
 
 function multilang_filter($courseid, $text) {
 
+    global $CFG;
+
 /// Make sure XML is enabled in this PHP
     if (!function_exists('xml_parser_create')) {
         return $text;
@@ -58,6 +60,9 @@ function multilang_filter($courseid, $text) {
         return $text;
     }
 
+/// Flag this text as something not to cache
+    $CFG->currenttextiscacheable = false;
+
 /// Get current language
     $currentlanguage = current_language();