KB41795: "The address name already exists. Please choose a different name" error message appears when trying to delete a contact's address

SYMPTOM:
 
When trying to to delete a Contact's Address, an error message shows up:
"The address name already exists. Please choose a different name"
  
STEPS TO REPRODUCE: 

1. Launch Desktop and login to the project source.
2. Go to Administration > Delivery Managers > Contacts.
3. Expand a user with more than one e-mail address.
4. Try to delete an address from the user to see the error message. The address is not going to be deleted.

CAUSE:
 
This is a known issue in Strategy 9.x.
 
ACTION:
 
Contact Strategy Technical Support for an update on this issue.