Main Wiki logo is displayed on email notifications sent to local user of subwiki

STEPS TO REPRODUCE

1. Go to Main Wiki > Administer Wiki > Look & Feel > Themes and change the logo
2. Create a subwiki
3. On subwiki, configure Mail Sending from Administer Wiki > Mail > Mail Sending
4. Go as well to Adminster Wiki > Look & Feel > Themes and change the logo on the subwiki
5. Create a local user with a valid email address
6. Login with the user, go to Notifications Settings and turn Pages toggles to ON
7. Login with Admin
8. Create/update a page
9. Trigger the 'Notifications daily email' from Scheduler.WebHome (on subwiki)
10. Observe the mail received by the local user

EXPECTED RESULTS

On the received email, the logo of the subwiki is displayed since the email was sent by the subwiki.

ACTUAL RESULTS

The Main Wiki is displayed, although the link corresponding to the logo on the mail is correct (pointing to the respective subwiki).