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
*            Name of property
	 * @param locale
	 *            the locale
	 * @return externalized message.
	 */
	private static String searchForExternalizedValue( DesignElement element,
			String propIDName, ULocale locale )
	{
		while ( element != null )
		{
			Module root = element.getRoot( );
			String textKey = (String) element.getLocalProperty( root,
					propIDName );
			if ( !StringUtil.isBlank( textKey ) )
			{
				String externalizedText = root.getMessage( textKey, locale );
				return externalizedText;
			}
			element = element.getExtendsElement( );
		}
		return null;
	}
	/**
	 * Returns externalized value.
	 * 
	 * @param element
	 *            Design element.
	 * @param propIDName
	 *            ID of property
	 * @param propName