Bug 145724 Change version after auto convert
By the request of 136536, user get warning message to confirm the auto convert. If user select yes, the file convert to newest format, but the version is still old. If user open this file again, he'll get the warning message even the file converted.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
* @param value
	 *            the original value to copy
	 * @return the cloned list of simple property values
	 */
	private static Object clonePropertyList( List value )
	{
		if ( value == null )
			return null;
		ArrayList returnList = new ArrayList( );
		for ( int i = 0; i < value.size( ); i++ )
		{
			Object item = value.get( i );
			if ( item instanceof ElementRefValue )
			{
				returnList.add( ( (ElementRefValue) item ).copy( ) );
			}
			else
			{
				returnList.add( item );
			}
		}
		return returnList;
	}
	/**
	 * Filtrates the notification tasks.
	 * 
	 * @param tasks
	 *            the notification tasks
	 * @return a list contained filtrated notification tasks
	 */