Refine collection-like property conversion using arrays

[mp911de]

We have multiple places that deal with array conversion also outside of the converter. That isn't ideal as array handling is distributed across the code base. Also, we do not properly convert individual array values, instead we use the conversion service to convert one array into another. Array-to-array conversion causes an inconsistency across modules as we should apply converters on a per-element level.

[schauder]

See #1900

[schauder]

StringBasedJdbcQuery is one place where arrays are getting handled.