Bug 148747 Design become invalid when I extend a masterpage from Library
The attachment contains a report file and a library file. Reproduce: 1. Deploy the library("lib"), and open the report. 2. Drag Masterpage("page1") from "lib" to report. 3. Reopen the report, it become invalid.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
return DesignSchemaConstants.ENCRYPTED_PROPERTY_TAG;
				return DesignSchemaConstants.PROPERTY_TAG;
		}
	}
	/**
	 * Writes one property entry of an element.
	 * 
	 * @param obj
	 *            the design element
	 * @param propName
	 *            the property name
	 */
	protected void property( DesignElement obj, String propName )
	{
		writeProperty( obj, null, propName, false );
	}
	/**
	 * Writes one property entry of an structure.
	 * 
	 * @param structure
	 *            the structure
	 * @param memberName
	 *            the member name
	 */
	protected void property( IStructure structure, String memberName )
	{
		writeProperty( structure, null, memberName, false, false );
	}
	/**
	 * Writes one property entry of an element as CDATA.