Total amount missing from event confirmation mail

The notification/confirmation mail sent out after a manual status change of an event participant does not contain the total amount of the event fee.

To reproduce this issue, please follow these instructions (on sandbox, set outgoing email to "redirect to database"):
1. Create new event
2. In "Online Registration:

• Allow online registration: Yes
• Register multiple participants: Yes
• Send Confirmation Mail: Yes
• Include Profile: "New Individual"
  3. In "Fees":
• Paid Event: Yes
• Enable Pay Later option?: Yes
• Add some fees
  4. Use "Event Links" -> "Online Registration (live)" to register.
  5. Note that the email notification contains the correct total amount
  6. Menu -> "Events" -> "Find Participants" -> Search
  7. Select your participant
  8. Action menu -> "Batch Update Participants via Profile"
  9. Select Profile: "Participant Status"
  10. Set status to "registered"
  11. Note that the total amount is missing!