Bug 213680 [2.2.2]Chart script can not be cleaned completely.
Description: Reset script or delete all script does not work. build version: v20071221-0630 steps to reproduce: 1. New a report. 2. New a chart. 3. Enter some script for the chart and save the report. 4. Click the reset scirpt button or delete all script. 5. Save the report and switch to layout,then switch back to script page. Expected result: Script are cleaned. Actual result: Script are not cleaned. Note: If you delete part of the script, it works.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
writer.endElement( );
			}
			writer.endElement( );
		}
	}
	/**
	 * Writes the contents of the container information. The contents are
	 * enclosed in an optional list tag.
	 * 
	 * @param containerInfor
	 *            the container infor
	 * @param tag
	 *            the optional list tag that encloses the list of contents
	 */
	private void writeContents( ContainerContext containerInfor, String tag )
	{
		assert containerInfor != null;
		List list = containerInfor.getContents( getModule( ) );
		if ( list.isEmpty( ) )
			return;
		
		DesignElement tmpElement = containerInfor.getElement( );
		if ( tmpElement.getExtendsElement( ) != null )
		{
			PropertyDefn propDefn = tmpElement.getPropertyDefn( containerInfor
					.getPropertyName( ) );
			if ( propDefn == null
					|| propDefn.getTypeCode( ) != IPropertyType.CONTENT_ELEMENT_TYPE )
				return;
		}