Fix missing space in identifier WHERE clausule if the entity has multiple columns as the primary key

[Vantomas]

Subject

There is a problem if the entity has multiple columns as the primary key. In this case EntityAuditBundle ends with a SyntaxErrorException.

Doctrine\DBAL\Driver\Mysqli\Exception\ConnectionError: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '?AND itemid = ?' at line 1 in /Users/vantomas/Projekty/lms-dev/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/Exception/ConnectionError.php:19

Next Doctrine\DBAL\Exception\SyntaxErrorException: An exception occurred while executing 'UPDATE invoicecontents_audit SET docid = ? WHERE rev = ? AND docid = ?AND itemid = ?' with params [343765, 149657, 343765, 1]:

I am targeting this branch, because it's without BC-break.

Changelog

### Fixed
- Fix missing space in identifier WHERE clausule if the entity has multiple columns as the primary key

[VincentLanglet]

Thanks