On ee-prototype, /var/log/apache2/error.log contained
PHP Fatal error: Can't inherit abstract function Flow\\Data\\Index::getLimit() (previously declared abstract in Flow\\Data\\FeatureIndex) in /mnt/mediawiki/extensions/Flow/includes/Data/ObjectManager.php on line 693
I'm not seeing this error on my local instance running 5.4.9-4ubuntu2.2.
Maybe it's a PHP version issue? ee-prototype is running PHP 5.3.2-2wm1 and http://www.php.net/manual/en/language.oop5.interfaces.php says "Prior to PHP 5.3.9, a class could not implement two interfaces that specified a method with the same name". Other labs instances and production are running 5.3.10-1ubuntu3.6+wmf1 (apache2handler).
Version: master
Severity: major