- WIP on Ulmus -- new use case showed up, modification were needed.

src/EntityCollection.php

@@ -2,7 +2,7 @@
 
 namespace Ulmus;
 
-class EntityCollection extends \ArrayObject
-{
-    use Common\ArrayObjectTrait;
+#class EntityCollection implements \Countable, \ArrayAccess
+class EntityCollection extends \ArrayObject {
+   #  use Common\ArrayObjectTrait;
 }