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
/**
	 * Gets the copy of the given element.
	 * 
	 * @param element
	 *            the element to copy
	 * @return the copy of the element
	 */
	public static DesignElement getCopy( DesignElement element )
	{
		if ( element == null )
			return null;
		try
		{
			DesignElement copy = (DesignElement) element.clone( );
			assert copy != null;
			return copy;
		}
		catch ( CloneNotSupportedException e )
		{
			assert false;
			return null;
		}
	}
	/**
	 * Returns externalized message. If There is no externalized message, return
	 * null.
	 * 
	 * @param element
	 *            Design element.
	 * @param propName