SelectManagers and Custom Field for where-criteria not available

[iconberg]

Hello,

we have an custom field "vadrnr" under account, i can use it for account, contact, qoute with an custom Selectionmanager.
For quoteitem the field is not available. How can i workaround this?

Tried with Account.vadrnr

[2019-01-21 09:15:16] Espo.ERROR: API [GET]:/:controller, Params:Array (     [controller] => QuoteItem ) , InputData:  - SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Account.vadrnr' in 'where clause' [] []
[2019-01-21 09:15:16] Espo.ERROR: Display Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Account.vadrnr' in 'where clause', Code: 42S22 URL: /espocrm/api/v1/QuoteItem?select=name%2CquoteId%2CquoteName%2CquoteStatus%2Cquantity%2CunitPriceCurrency%2CunitPrice%2CamountCurrency%2Camount&maxSize=15&offset=0&orderBy=order&order=desc [] [] 

Tried with Quote.Account.vadrnr

[2019-01-21 09:20:47] Espo.ERROR: API [GET]:/:controller, Params:Array (     [controller] => QuoteItem ) , InputData:  - SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Quote.account' in 'where clause' [] []
[2019-01-21 09:20:47] Espo.ERROR: Display Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Quote.account' in 'where clause', Code: 42S22 URL: /espocrm/api/v1/QuoteItem?select=name%2CquoteId%2CquoteName%2CquoteStatus%2Cquantity%2CunitPriceCurrency%2CunitPrice%2CamountCurrency%2Camount&maxSize=15&offset=0&orderBy=order&order=desc [] []