Searching opened tickets returns a closed one

[zwanona]

Using this code

this.zendesk.search.list('query=type:ticket status:open').then(function (results) {
    console.log(results);
});

I get a closed ticket

[
  { 
    id: 3746,
    priority: null,
    status: 'open',
    problem_id: null,
    has_incidents: false,
    tags: [ 'phoneticket' ],
    allow_channelback: false,
    result_type: 'ticket' 
  },
  { 
    id: 3165,
    priority: null,
    status: 'closed', <---------- ?
    problem_id: null,
    has_incidents: false,
    tags: [ 'closed_by_merge', 'phoneticket' ],
    allow_channelback: false,
    result_type: 'ticket' 
  }
]