[TYPO3-dev] Ignore tx_extbase_type

[Tim OS]

Hey,
got exactly the same problem!
Multiple Extbase extensions extending fe_users by an own FrontendUser model. So setting one "tx_extbase_type" for all users is not possible.

I tried to overwrite the method "findByUid" with my own query setting (Doesn't work either):
$query->getQuerySettings()->setEnableFieldsToBeIgnored(array('tx_extbase_type'));

Doesn't this problem exist for all TYPO3 installations with multiple extensions of fe_users?
How did you manage to get the "getRepositoryClassName" to work?

Best regards 
Tim