_include search parameter with source type not matching the domain resource type should be ignored

[limorl]

Describe the bug
When including a resource type now matching the domain resource type, the include search parameter should be ignored.

To Reproduce
Steps to reproduce the behavior:

1. run query: [base]/MedicationRequest?_include:MedicationDispense:patient
2. You will get in return Patient resources which are referenced by MedicationDispense

Expected behavior
Search parameter should be ignored and results should be similar to running [base]/MedicationRequest?

Actual behavior
Patient resources referenced by MedicationDispense resources are returned

[CaitlinV39]

@johnstairs & @brendankowitz to review