FIX search on date into supplier invoice list dont work because of status -1

htdocs/fourn/facture/list.php

@@ -206,7 +206,7 @@ if ($search_amount_all_tax != '')
 	$sql .= natural_search('fac.total_ttc', $search_amount_all_tax, 1);
 }
 
-if ($search_status != '')
+if ($search_status != '' && $search_status>=0)
 {
 	$sql.= " AND fac.fk_statut = ".$search_status;
 }