[Livestream] "typing" activity received after livestream finalized should be ignored

[compulim]

Is it an issue related to Adaptive Cards?

No

Is this an accessibility issue?

No

What version of Web Chat are you using?

Development build

Which distribution are you using Web Chat from?

Unrelated

Which hosting environment does this issue primarily affect?

Others or unrelated

Which browsers and platforms do the issue happened?

Others or unrelated

Which area does this issue affect?

Chat history

Which theme pack does this issue affect?

I did not test it on other theme packs

What is the public URL for the website?

No response

Please describe the bug

When receiving a typing activity after the livestream is concluded with a message activity, the typing activity is overwriting the message activity.

Do you see any errors in console log?

No response

How to reproduce the issue?

1. Navigate to ...
2. Click on ...
3. Type "..." in the send box

What do you expect?

After the livestream concluded, it should not be modified. Thus, no typing activity should be processed.

What actually happened?

The concluded livestream is being replaced by the interim typing activity.

Do you have any screenshots or recordings to repro the issue?

No response

Adaptive Card JSON

No response

Additional context

No response