|  | @@ -117,10 +117,10 @@ class Relation
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				|  |  |              $where['level'] = $level;
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				|  |  |          }
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				|  |  |          if ($start) {
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				|  |  | -            $where['cdate#'] = array('>=', strtotime($start));
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				|  |  | +            $where['cdate#'] = ['>=', strtotime($start)];
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				|  |  |          }
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				|  |  |          if ($end) {
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				|  |  | -            $where['cdate##'] = array('<=', strtotime($end));
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				|  |  | +            $where['cdate##'] = ['<=', strtotime($end)];
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				|  |  |          }
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				|  |  |          $method = 'select';
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				|  |  |          if ($method == 'count') {
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