From 403f21ae7885167d571688aeeddae149058e777f Mon Sep 17 00:00:00 2001
From: Classic298 <27028174+Classic298@users.noreply.github.com>
Date: Wed, 14 Oct 2026 10:18:27 +0200
Subject: [PATCH] fix: a person mentioned in a channel without a name shows a
 raw id (#32371)

When an app mentions a person in a channel message by account id only, without a display name, the channel showed raw text like "@U:" followed by a long id. It now shows the person's name, or "Unknown" when the account no longer exists, the same way mentions that carry a name already worked. Mentions that carry a custom name keep showing it.

Fixes #32362