bug: Leave group but still appear in mention list

[minhth-1529]

Describe the bug

My group has three members, called A, B, and C, when C is using the function channel.removeMember() aims to remove himself from the group, but now, in the group, A still sees C in the mention list.

To Reproduce

Steps to reproduce the behavior:

1. Create group
2. user A check mention list
3. user C using channel.removeMember(), remove himself from group.
4. now user A still see C in mention list

Expected behavior

mention list re-render, only members of the group will appear in the mention list.

Screenshots

Screen.Recording.2023-12-22.at.9.29.50.AM.mp4

Package version

• stream-chat-react: 11.1.2
• stream-chat-css: 4.2.0
• stream-chat-js: 8.14.4

[MartinCupela]

@minhth-1529 thank you for the report. Adding the bug to the list we plan to tackle in the following weeks.

[minhth-1529]

@MartinCupela thank you

[MartinCupela]

This issue needs support from the API. The root cause is that on event notification.removed_from_channel the SDK is not calling channel.stopWatching(). As a result of that the mentions suggestion list still contains channel watchers that have been removed as members from the channel.

cc @totalimmersion - a user cannot stop watching a channel a from which it was previously removed.