Bug: Autocomplete on Collab - suggestion appears in a different session while composing on another.

Lexical version: v0.20.0

## Steps To Reproduce

1. Run lexical locally
2. Turn on autocomplete and collab mode from the sidebar settings
3. Copy the url
4. Open new browser tab/window and paste the url
5. Type common word on one of the editors, wait and accept the suggestion with Tab key.
6. Repeat step-5 by switching the tabs

## The current behavior

https://github.com/user-attachments/assets/d74f8012-ea1b-49a5-b593-5070053a6005

## The expected behavior
The suggestion should appear in the respective session only.