Bug 119550 Default Value of Named Expression can't be saved in design file
New a report, set named expression in the report property editor add a named expression and set the default value add a report item, say table, to the layout set the named expression of the report item add a named expression and set hte default value save the report close the report and reopen, and there is no default named expression value displayed. open report design file with a text editor, there is no default value associate with the named expression
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/UserPropertyStructureState.java
{
		ArrayList choices = null;
		UserChoice choice = new UserChoice( null, null );
		ChoiceStructureState( ArrayList theChoices )
		{
			this.choices = theChoices;