Fix: sort $aux_account after adding all items

Currently, some items are added to $aux_account, then the array is
sorted, then more items are added. In the end, the list visible in the
UI is not sorted.

htdocs/core/class/html.formaccounting.class.php

@@ -502,8 +502,6 @@ class FormAccounting extends Form
 				return -1;
 			}
 
-			ksort($aux_account);
-
 			$this->db->free($resql);
 
 			// Auxiliary user account
@@ -526,6 +524,8 @@ class FormAccounting extends Form
 			}
 			$this->db->free($resql);
 
+			ksort($aux_account);
+
 			if ($usecache) {
 				$this->options_cache[$usecache] = $aux_account;
 			}