[Bug] Chat question not attached to the api payload when agent flow is configured for form inputs

[VishnuShigi]

Hi,

When a agent flow has form inputs configured, the initial chat with form input works as expected. But the next question from user is not being sent to the api from embed chat.

Context:
Initial chat paylaod with form input:

Next question's payload (after giving the form values):

Expected to send the question in the payload like this:

[SyncWithRaj]

Hey everyone! 👋

I looked into this issue and found the root cause. When the chatbot configuration loads, the startInputType is correctly set to 'formInput'. However, it was never being reset after the initial form submission payload was processed. Because of this, the widget perpetually thought it was in a form-submission state, which caused subsequent normal text messages to send an empty {form: {}} instead of {question: "user text"}.

I've submitted a PR that fixes this by simply resetting startInputType back to an empty string right after the form payload is constructed in handleSubmit().

You can review the fix here: #374

With this fix, the initial form payload is sent perfectly, and all subsequent chat messages correctly use the question field payload. Message regeneration also works normally again after form submission! Let me know if you need any changes.