Index: branches/5.2.x/core/units/helpers/priority_helper.php
===================================================================
--- branches/5.2.x/core/units/helpers/priority_helper.php
+++ branches/5.2.x/core/units/helpers/priority_helper.php
@@ -91,13 +91,6 @@
 				return Array ();
 			}
 
-			list ($id, $pair) = each($changes);
-
-			if ( !$id && !isset($pair['constrain']) ) {
-				// adding new item without constrain -> priority stays the same
-				return Array ($id);
-			}
-
 			$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
 			$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
 
@@ -245,4 +238,4 @@
 				$dummy->Update();
 			}
 		}
-	}
\ No newline at end of file
+	}