Version:           4.7 (using KDE 4.7.1) 
OS:                Linux

When typing an email address into the address line, a choice of possible candidates comes up after the first letter. However, when I continue to type, this list isn't further reduced. Instead, new proposals are appended to the list. So it's growing the more letters are typed in.

Reproducible: Always

Steps to Reproduce:
1. create a new mail
2. type an e-mail address into the address line
3. watch the list of autocompleted e-mail addresses which is proposed

Actual Results:  
The list doesn't shrink, it becomes longer and longer

Expected Results:  
The list should be reduced to the possible candidates of e-mail addresses.

The algorithm itself seems to work, it just seems to be an output problem.

BTW, I use KDE 4.7.2, but it's not offered in the version dropdown box above.