sonata-project/SonataAdminBundle — pull request #1498 by caponica (2013-08-02 10:44:15+00:00)
Title: Removed cannotBeEmpty() condition on persist_filters

The default value of this setting is false. If you actually put

persist_filters: false

in your YML file you get an error due to the ``cannotBeEmpty()`` condition, which I think is not needed here.