"Date" Parameters Not Working for Encounter and MedicationRequest

[thayerj]

The date and -timing-boundsPeriod parameters for the Encounter and MedicationRequest resources respectively, do not appear to be functioning as expected. The parameters appear to be valid (no errors are reported), however the request is not being filtered. I can confirm the date parameters are working as expected for other resources (e.g. Procedures). See below for example requests:

Encounter:
https://fhir-open.cerner.com/r4/ec2458f2-1e24-41c8-b71b-0e701af7583d/Encounter?patient=12724066&date=lt2020-12-24T12:00:00.000Z

MedicationRequest:
https://fhir-open.cerner.com/r4/ec2458f2-1e24-41c8-b71b-0e701af7583d/MedicationRequest?patient=12724065&-timing-boundsPeriod=ge2023-05-19T20:54:02.000Z