Group Bulk Export does not apply _typeFilter searches to members of the group

[StevenXLi]

The _typeFilter searches on bulk export do not apply to members of the group, and all members of the group are returned.

Steps to reproduce the behavior:

1. Create 2 Patients - one with a 'male' gender, one with a 'female' gender
2. Add both patients to a Group resource and create the Group
3. Do a Group Bulk Export like: http://localhost:8000/Group/3157/$export?_type=Patient&_typeFilter=Patient?gender=female
4. All patients are returned including 'male' patients

Expected behavior
Expected: Only female patients are returned

Environment:

• HAPI FHIR Version 6.2.0-PRE2
• OS: MacOs
• Browser: chrome