Bug 149783 Display text for extend elelment in master page is not found
Steps to reproduce: 1.New a library, add a properties file for the library, add pair"k1=actuate" to the properties file 2.Add a label "aaa" in master page header, set "k1" as the text key 3.Publish the library 4.New a report, extend lib.masterpage 5.Open extended master page in report Expected result: label shows display text "actuate" Actual result: label shows text "aaa"
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
if ( propHandle != null )
			{
				valueToSet = ModelUtil.copyValue( propHandle.getDefn( ), value );
			}
			if ( valueToSet != null )
			{
				Iterator iter = ( (List) valueToSet ).iterator( );
				while ( iter.hasNext( ) )
				{
					UserPropertyDefn userPropDefn = (UserPropertyDefn) iter
							.next( );
					destination.getElement( )
							.addUserPropertyDefn( userPropDefn );
				}
			}
		}
		if ( source.getElement( ) instanceof IExtendableElement )
			duplicateExtensionIdentifier( source, destination );
		Iterator iter = source.getPropertyIterator( );
		while ( iter.hasNext( ) )
		{
			PropertyHandle propHandle = (PropertyHandle) iter.next( );
			String propName = propHandle.getDefn( ).getName( );
			
			
			
			if ( StyledElement.STYLE_PROP.equals( propName )
					|| DesignElement.EXTENDS_PROP.equals( propName )
					|| DesignElement.USER_PROPERTIES_PROP.equals( propName )
					|| IOdaExtendableElementModel.EXTENSION_ID_PROP