SimpleMachines/SMF2.1 — pull request #991 by Arantor (2013-12-06 02:50:52+00:00)
Title: ! Fields that are regex-validated can't be left empty as per http://www....

...simplemachines.org/community/index.php?topic=499992.0 (thanks @emanuele45 for the fix)

Signed-off-by: Peter Spicer