Don't want by default selected item in picklist which is displayed

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What steps will reproduce the problem?
1. Enter any keyword 'Hi' in Combobox
2. The picklist will show all relevant results
3. Currently picklist is shown where with by default first item is highlighted. 
I don't want this behavior.
4. I tried with defaultToFirstOption : false, but its not working

What is the expected output? What do you see instead?
Want by default no item selected in displayed picklist. Something like google 
search

What version of the product are you using? On what operating system?

What browser(s) does this happen in?  Are there any browsers where the
issue does not occur?

Please provide any additional information below.

Original issue reported on code.google.com by bramha.b...@gmail.com on 11 Sep 2013 at 7:30

wcx6298 / smartgwt

Don't want by default selected item in picklist which is displayed #724