Bug 142432 MasterPage from library can't be restored to modify
Details: MasterPage from library can't be restored to modify Step: 1.New a library named lib1, and insert a masterpage named lib-mp. 2.Publish the library into resource folder. 3.New a report design and use lib1. 4.Drop the lib-mp from library explorer into outline of report design. 5.Double click lib-mp, and switch to Property editro tab. 6.Click restore. Actual result: Pop up an error message and said that the master page cannot specify size the page type is not custom.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
propName );
		if ( propDefn == null )
			throw new PropertyNameException( getElement( ), propName );
		propDefn = (ElementPropertyDefn) targetHandle.getDefn( ).getProperty(
				propName );
		if ( propDefn == null )
			throw new PropertyNameException( targetHandle.getElement( ),
					propName );
		Object value = getElement( ).getLocalProperty( module,
				propDefn.getName( ) );
		if ( value == null )
		{
			targetHandle.setProperty( propName, null );
			return;
		}
		if ( DesignElement.NAME_PROP.equals( propName )
				|| DesignElement.EXTENDS_PROP.equals( propName ) )
		{
			throw new SemanticError( getElement( ), new String[]{propName},
					SemanticError.DESIGN_EXCEPTION_PROPERTY_COPY_FORBIDDEN );
		}
		switch ( propDefn.getTypeCode( ) )
		{
			case PropertyType.ELEMENT_REF_TYPE :
				ElementRefValue refValue = (ElementRefValue) value;
				if ( refValue.isResolved( ) )
					targetHandle.setProperty( propDefn.getName( ), refValue
							.getElement( ) );
				else
				{