Merge branch 'hotfix/#6028-baseinputfilter-nested-inputfilter-values'

Close #6028
Allow empty response strings in \Zend\Http\Response::fromStream
Adding `@group` and `@covers` annotations to stream response test for #6027
Minor conditional simplification for #6027
Merge branch 'hotfix/#6027-http-response-from-stream-status-code' into develop

Close #6027
Forward Port #6027