Node: Status filter inverted (Filtering by Published gives only Unpublished Nodes and vice versa)

Using Solr Integration as well, we've indexed Node: Status, but when using views to filter out Published/Unpublished results they are the wrong way round. (Filtering out unpublished results shows only unpublished results).

I've debugged this a little and found out that Node: Status is using SearchApiViewsHandlerFilterOptions rather than SearchApiViewsHandlerFilterBoolean. Also the options defined in definition['options'] are the wrong way round.

$this->definition['options'] = array(
  0 => 'Published',
  1 => 'Unpublished',
);

How could we get the field to operate as a boolean?