additionalSearchParameters.query_by seems to have broken between 2.2.0 and 2.4.0

[eminos]

Description

After upgrading from 2.2.0 to 2.4..0 (and even [2.4.1-1)) I started getting getting this error:
Error: 400 - No search fields specified for the query
and the search obviously didn't work.

Steps to reproduce

additionalSearchParameters.query_by seems to be ignored.

adding query_by to all collections in collectionSpecificSearchParameters solves the problem.

[jasonbosco]

@eminos Thank you for catching this. I've pushed out a fix for this in v2.4.1-3. Could you give it a shot now?