Bug #1387: Fix bug when it happens in the opposite way.

This fixes when you have a container task which is a scheduling point, and you
unschedule it to schedule its children. This is the opposite to the original
description of the bug, but the cause is the same.

FEA: ItEr76S04BugFixing

libreplan-business/src/main/java/org/libreplan/business/orders/entities/OrderElement.java

@@ -324,8 +324,9 @@ public abstract class OrderElement extends IntegrationEntity implements
     }
 
     private boolean wasASchedulingPoint() {
-        return getTaskSource() != null
-                && getTaskSource().getTask() instanceof Task;
+        SchedulingDataForVersion currentVersionOnDB = getCurrentVersionOnDB();
+        return SchedulingState.Type.SCHEDULING_POINT == currentVersionOnDB
+                .getSchedulingStateType();
     }
 
     private boolean itWasntSchedulingPoint() {