"No Options Found" in typeahead not announced by NVDA

Scenario: Filling out an Entity Attributes Filter with NVDA

Browser(s): Edge (vCurrent) + NVDA

1. Create a metadata provider
2. Add an Entity Attributes Filter
3. Search By: Entity ID
4. Begin typing in the Search Criteria box such that "No Options Found" appears

Expected result: "No Options Found" should be heard
Actual result: Only text entry is announced (NVDA default)

I'm not 100% sure how this should actually behave, but I am pretty sure it is currently not behaving how it should for sightless users.