Blog email notifications do not display user mentions in their body

STEPS TO REPRODUCE

Preconditions: The the Blog Applications is installed and Email sending is configured from Administration.

1. Login as Admin
2. Create an user (e.g. U1, with a valid email address)
3. Login as U1
4. Go to Notifications Settings > Applications section and set Blog toggles to ON
5. Login as Admin
6. Go to Blog
7. Fill a new post name and click 'Create' to create a new blog post
8. In 'Content' field, write a short sentence and mention user U1 (like "Hey @U1 how are you?")
9. Select 'Publish' to publish the blog post
10. Click 'Save & View'
11. Trigger the 'Notifications daily email' job from Scheduler.WebHome
12. Observe the email received for user U1

EXPECTED RESULTS

On received email, the Blog notification displays in its body (the block quote) the sentence with the user mention.

ACTUAL RESULTS

Only the words from the sentence are displayed, without the user mention, see attached screenshot.