improve interruption handling, avoid agent from getting stuck #1290
+21
−5
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there are a couple of conditions that could cause the agent to be stuck. This is because the current speech could be interrupted first (because it's acting on VAD events), but the handling of that event only comes in later during validations.
this change ensures that if we ever get to the validation stage, and the agent is not currently speaking, we would always generate a new thread, even if the incoming transcript is empty. If interrupted with a cough (as an example), it will allow the agent to pick up from where it'd left off.
fixes #1229