phpbb/phpbb3 — pull request #900 by naderman (2012-07-17 16:50:27+00:00)
Title: [ticket/10965] Introduce a new profile field option to display no value

By default the 3.0.10 behaviour is kept, profile fields will not show up
if they have either not yet been selected or in case of an optional
dropdown field if the novalue option was selected.

http://tracker.phpbb.com/browse/PHPBB3-10965