Duplication problem when adding an existing room

[Huuuze]

Steps to reproduce

When adding an existing room to a space, we've noticed that conversations with individual people now lists their display name twice in the list of conversations.

For example, if I had a conversation with "John D" in the "Marketing" room of the "Corporate" space and then added that room to a new space (i.e., "Marketing Division"), my conversations with "John D" now show "John D and John D" as the display name in the list of conversations.

This bug is limited to iOS. Android users and desktop users are not seeing the same issue.

Outcome

I expect the Display Name value to not be duplicated.

Your phone model

iPhone 15 Pro

Operating system version

iOS 17.4.1

Application version

1.11.9

Homeserver

Synapse 1.93.0

Will you send logs?

No