This task is about verifying manual topic subscriptions supports muting in expected ways.
=== Testing instructions
**Testing environment**
- Wiki: **Beta Cluster**
- Platform: **mobile** or **desktop**
- Browser: **not specified**
- Accounts needed: **3**
-- `Account 1`
-- `Account 2`
-- `Account 3`
**Steps**
1. Log into `Account 1` the Beta Cluster
2. Visit a talk page (e.g. https://en.wikipedia.beta.wmflabs.org/wiki/Talk:Cats)
* Make sure it is not a user talk page, or a subpage of a user talk page. Muting is ignored on your own user talk page (intentionally, [[ https://www.mediawiki.org/wiki/Help:Notifications#Muting_users | as documented ]]) and its subpages (due to an unrelated bug: T288112).
3. Subscribe to a conversation (read: section) on that page
4. Visit: https://en.wikipedia.beta.wmflabs.org/wiki/Special:Preferences#mw-prefsection-echo
6. Add `Account 2` to the `Muted users` field at the bottom of `Special:Preferences#mw-prefsection-echo`
7. Click {nav Save}
8. Log into `Account 2`
9. Post a comment to the same section you subscribed to in "Step 3.", using `Account 1`
10. Log back into `Account 1`
11. ✅Verify you were NOT notified about the comment you posted using `Account 2` in "Step 9."
12. Log into `Account 3`
13. Post a comment to the same section you subscribed to in "Step 3.", using `Account 1`
14. Log back into `Account 1`
11. ✅Verify you were notified about the comment you posted using `Account 3` in "Step 13."
=== Done
- [ ] File tickets for any behavior NOT described in the "Steps" section above