Individual prefix set to incorrect language on multlingual

Background here: http://forum.civicrm.org/index.php/topic,19390.0.html

In essence the problem is that the triggers cycle through all enabled languages setting @prefix to the appropriate value, ending with @prefix set as the last value, and then the triggers update all languages to that last value.

Instead it should be
foreach language {
select prefix;
set displayname;
}

Pretty simple to fix. Will fix with Piotr soon hopefully.

As well as needing to fix the bug, would be good to find out a way of calling createTriggerQueries outside of enabling multiligual / upgrading to cater for this situation.