Mutant-friendly test fix.
Mutant-friendly test fix.

I'm not sure I get the intent of this test fully, so I'll just make it
passing with the tiniest sensible change.

mpraglowski/rails_event_store,arkency/rails_event_store,RailsEventStore/rails_event_store,mpraglowski/rails_event_store,RailsEventStore/rails_event_store,mpraglowski/rails_event_store,arkency/rails_event_store,arkency/rails_event_store,arkency/rails_event_store,RailsEventStore/rails_event_store,RailsEventStore/rails_event_store,mpraglowski/rails_event_store