More yoda conditions
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@ -547,7 +547,7 @@ class Customer extends Base_Model {
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*/
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public function get_extra_information() {
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if ($this->extra_information === null) {
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if (null === $this->extra_information) {
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$extra_information = (array) $this->get_meta('wu_customer_extra_information');
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$this->extra_information = array_filter($extra_information);
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