12.2.5.3: Q452882 OpenObject action is active, even if XPCollection is empty
http://www.expandframework.com/forum/6-bugs/3103-openobject-action-is-active-even-if-xpcollection-is-empty.html#3103
http://www.expandframework.com/forum/6-bugs/3103-openobject-action-is-active-even-if-xpcollection-is-empty.html#3103