Bug 183888 BIRT designer - Cube in data explorer
Current behavior - The data explorer view allows uer to change the order of a group level in a hierrachy. Expected behavior - user should not be allowed to change the order of the group level in data explorer view. - Instead user can user cube builder dialog to change the order.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
}
	/**
	 * Gets a copy of source data. If copy multi-selection, skip all children's
	 * clone
	 * 
	 * @param source
	 *            source to clone
	 * @return copy of source
	 */
	public static Object cloneSource( Object source )
	{
		source = unwrapToModel( source );
		if ( source instanceof Object[] )
		{
			Object[] array = (Object[]) source;
			ArrayList list = new ArrayList( );
			for ( int i = 0; i < array.length; i++ )
			{
				if ( array[i] instanceof ColumnHandle )
				{
					list.add( cloneSource( array[i] ) );
				}
			}
			if ( !list.isEmpty( ) )
			{
				return list.toArray( );
			}
			for ( int i = 0; i < array.length; i++ )
			{