InputHint not respected by WebChat in speech scenarios

Screenshots

Version

CDN: latest/webchat.js

Describe the bug

The InputHint on a return activity indicates whether the microphone should be opened to take additional input. ExpectingInput should result in the microphone being opened but it's seemingly ignored.

To Reproduce

• Open webchat with Bot
• Ask a question using speech that will trigger a response with InputHint set.

Expected behavior

• Microphone to be opened automatically when ExpectingInput set on InputHint.

[Bug]