MDM Expansion Search impacts the Search operation with conditional references

[YalingPeiS]

Problem Statement

Search operation with conditional referencing is not working after enabling MDM expansion search.

Description

When MDM expansion search is enabled, search operations of other resource types are failing.
Example: http://localhost:8000/AllergyIntolerance?patient.identifier=https://api.loblaw.ca/fhir/NamingSystem/hw-1222%7Cpaaaid1102101

This worked fine before enabling the MDM expansion search. but doesn't work after enabling it. Below is the error message

{
    "resourceType": "OperationOutcome",
    "issue": [
        {
            "severity": "error",
            "code": "processing",
            "diagnostics": "HAPI-2001: Resource NamingSystem/hw-1222|paaaid1102101 is not known"
        }
    ]
}