diff --git a/htdocs/commande/class/commande.class.php b/htdocs/commande/class/commande.class.php
index 7746a342faa..f2266f9d171 100644
--- a/htdocs/commande/class/commande.class.php
+++ b/htdocs/commande/class/commande.class.php
@@ -1174,7 +1174,7 @@ class Commande extends CommonOrder
 				}
 			}
 		} else {
-			dol_print_error($this->db);
+			$this->error = $this->db->lasterror();
 			$this->db->rollback();
 			return -1;
 		}
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index bf543d32c25..ea03e9287ed 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -8452,7 +8452,7 @@ abstract class CommonObject
 								    $("#"+child_list).hide();
 								//Show mother lists
 								} else if ($("#"+parent_list).val() != 0){
-								    $("#"+parent_list).show();
+								    showOptions'.$type.'(child_list, parent_list, orig_select[child_list]);
 								}
 								//Show the child list if the parent list value is selected
 								$("select[name=\""+parent_list+"\"]").click(function() {