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fix PHP 8.x TypeError: Cannot access offset of type string on string
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@ -90,7 +90,7 @@ class addressbook_wizard_export_contacts_csv extends importexport_wizard_basic_e
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unset ($preserv['button']);
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$field_list = $this->get_field_list($content);
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$settings = $content['explode_multiselects'] ? $content['explode_multiselects'] : $content['plugin_options']['explode_multiselects'];
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$settings = $content['explode_multiselects'] ?: $content['plugin_options']['explode_multiselects'] ?: [];
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// Skip this step if no fields applicable
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if(count($field_list) == 0) {
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