fix: fix PartialSearchFilter and ExactFilter

[Coffee2CodeNL]

Q	A
Branch?	4.2
Tickets	Closes #7478
License	MIT

This fixes the PartialSearchFilter issue when using the new syntax:

'search[:property]'        => new QueryParameter(
                                filter    : new PartialSearchFilter(),
                                properties: ['name', 'color']
                            ),