As a Watchlist Expiry user, I only want to get email notifications for pages I am currently watching. I don't want to get notifications for expired watched items.
**Acceptance Criteria:**
- When someone edits a page I am watching, but the watch has expired, I don't receive an email notification
- When someone edits a page I am permanently or temporarily watching, and has not expired, I receive an email notification
(Actually, the logic behind when you receive an email notification is a little complicated from what I have seen, so someone else might need to clarify the above for me.)
**Steps to reproduce problem:**
1. Log in as UserA, go to Special:Preferences, check the option "Email me when a page or a file on my watchlist is changed" and save
2. Watch $page temporarily and let it expire (e.g. use API to watch for 1 second: `Special:ApiSandbox#action=watch&expiry=1 second&titles=$page`)
3. Log in as UserB (or anon.), edit $page
Expected behavior: UserA **does not** receive an email notification for the edit in step 3
Observed behavior: UserA **does** receive an email notification