Bug 194843 Cross tab Cube - Cannot delete a dimension using the cube builder
- Open the attached report design - Delete the "Region" group. Current behavior - Does now allow me to delete the group.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/ContentCommand.java
ContentException.DESIGN_EXCEPTION_HAS_DESCENDENTS );
		}
	}
	/**
	 * Changes derived elements to derive from the parent (if any) instead.
	 * 
	 * @param obj
	 *            the element to clean up
	 * @throws ExtendsException
	 *             if an error occurs, but the operation should not fail under
	 *             normal conditions
	 */
	private void adjustDerived( DesignElement obj ) throws ExtendsException
	{
		
		Collection derived = obj.getDerived( );
		if ( derived.isEmpty( ) )
			return;
		DesignElement parent = obj.getExtendsElement( );
		Iterator iter = derived.iterator( );
		while ( iter.hasNext( ) )
		{
			DesignElement child = (DesignElement) iter.next( );
			ExtendsCommand childCmd = new ExtendsCommand( module, child );
			childCmd.setExtendsElement( parent );
		}
	}
	/**
	 * Adjusts references to an element that is to be deleted. The element to be
	 * deleted is one that has references in the form of element reference