Reproduction steps: 

A. Open a ticket with someone CC'd on the ticket / email thread. 

B. Go to "Edit ticket"

C. Look at "CC" field. 

Expected behavior: Some mechanism is available to see what the email address is for the CC'd contact. Ideally you could see the email address by clicking on the "bubble". 

Observed behavior: It is impossible to see what email address is associated with the CC'd contact.