It looks like some time in the past 36 hours the values for $wgRestrictDisplayTitle and $wgAllowDisplayTitle were changed on English Wikivoyage (see http://en.wikivoyage.org/wiki/Wikivoyage_talk:Banner_Expedition#Not_inhibiting_title). Could these values be reset to:
$wgRestrictDisplayTitle should be false
$wgAllowDisplayTitle should be true
Thanks!
Version: wmf-deployment
Severity: enhancement