Sam 34a14112a7
FIX: remove "fake" mentions from extract_mentions (#26253)
```
<a class="mention" href="/u/test1">bsam</a>
```

Is not a mention of the user sam. We expect an @ in front always.
2024-03-20 12:20:15 +11:00
..
2023-05-24 08:59:37 +08:00