Description of Problem:
When a contact has both a birthday and an
anniversary set, only the birthday is displayed in
the calendar; anniversary is not displayed. They
do not have to share the same date.

Steps to reproduce the problem:
1. Create a contact.
2. Add anniversary to contact.
3. Verify anniversary is displayed in calendar.
4. Add birthday to contact.
5. Verify anniversary disappears in calendar.
6. Verify birthday is displayed in calendar.

Actual Results:
Birthday displayed in calendar; anniversary not.

Expected Results:
Birthday and anniversary should both display in
calendar if they are set on a contact.

How often does this happen? 
Always.