how to disable name space function in joomdle

hi.
i have a problem with name and surname sync beetwen joomla and moodle. i use cb for register user and some of my user has 2 sylabes in his name for example his name is "ahmad ali kamrani" that "ahmad ali" is his name and "kamrani" is his surname but in his moodle profile "ahmad" save as his name and "ali kamrani" is his surname.how can i solve that?

I think the only "good" way to solve it is to have a middle name field in CB and map it to Moodle.

I've seen the code before, but now I'm not finding it, can you say where is that ? i want to see can i comment that or no? i can not use middle name for some reason...
thank you

Code is administrator/components/com_joomdle/helpers/mappings.php and the CB profile plugin.