Searching for @user:home.server doesn't show messages of that user

[ell1e]

Description

(Forwarded from https://github.com/vector-im/element-meta/issues/1477 )

Searching for @user:home.server doesn't show messages of that user.

Steps to reproduce

1. Click top-right search button while in a room in element-desktop or element-web. The search bar should appear with the focus on "This room". Enter an account of someone in that room who wrote something previously in the form of @user:home.server. Also try @user (which IMHO should match everyone with a handle starting like that inside the room), and user and displayname.
2. Confirm with enter to start the search
3. See that there are no results, or only responses to and mentions of that user (which are fine to include), but not their own messages

Homeserver

matrix.org

Synapse Version

1.69.0rc2 (b=matrix-org-hotfixes,3d5242da14)

Installation Method

No response

Platform

official matrix.org server

Relevant log output

I'm not running the server so I don't have logs

Anything else that would be useful to know?

No response

[ell1e]

Does anyone know a workaround for being able to list your own messages? (For the purpose of e.g. deleting them?)

[ell1e]

Sadly, this still doesn't seem to be working. It works for mentions, but not for the actual messages of that user. If there's some log or such I could provide so this can be looked into, let me know.