autocompletion works even for substrings in a contact.

[yuvarajgogoi]

Steps to reproduce 1)create 2 contacts. "f" and "gf" . 2) Now try to autocomplete with "f"

both the contacts are shown in auto completion.

Tested on Ubuntu and is always reproducible

[PaulEU]

A lot of programs use autocompletion with substring matching in an address book. It's useful if you don't remember first letters of your contact. So, I'm closing this issue.