`useActiveTyping` start typing time `at` is not correct

Screenshots

Version

4.15.1

Describe the bug

The useActiveTyping returns a structure of:

interface Typing {
  at: number;
  expireAt: number;
  name: string;
  role: 'bot' | 'user';
}

The at field represents the start typing time. However, it is updated whenever typing activity is received. Thus, it is not "start typing" time, but "last typing" time.

Steps to reproduce

1. Use the useActiveTyping hook to observe the changes of typing
2. Send 2 or more typing activity within 2 seconds

Expected behavior

The useActiveTyping hook should return at with the same value.

Additional context

[Bug]

Start at the useActiveTyping hook and reproduce the issue by sending two or more typing activities within two seconds. It is done when the returned at value remains the initial typing timestamp while subsequent activity still updates the typing state.