Bug 200478 Name of date/time group level issue[1101]
Description: Name of date/time group level issue[1101] Step: 1. New a sample datasource and dataset from orders. 2. New a data cube and binding to the dataset. 3. Drop the column of "ORDERDATE" to group and select the year type. At this time, the name of group level is "year(ORDERDATE: DateTime)" 4. Edit the the group level. 5. Change the type as month. Actual result: The name of group level is "year(ORDERDATE: DateTime, DateTime)" Expected result: The name of group level is "year(ORDERDATE: DateTime)"
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/PropertyCommand.java
else if ( IModuleModel.THEME_PROP.equals( propName ) )
		{
			assert module == element;
			ThemeCommand cmd = new ThemeCommand( (Module) element );
			cmd.setThemeRefValue( (ElementRefValue) value );
		}
		else
		{
			
			assert false;
		}
	}
	/**
	 * Checks whether the name is valid in the context.
	 * 
	 * @param name
	 *            the new name
	 * @return <code>true</code> if the name is valid. Otherwise
	 *         <code>false</code>.
	 */
	private boolean isGroupNameValidInContext( String groupName )
	{
		assert element instanceof GroupElement;
		if ( groupName == null )
			return true;
		if ( element.getContainer( ) != null )
		{
			DesignElement tmpContainer = element.getContainer( );
			List errors = GroupNameValidator.getInstance( )
					.validateForRenamingGroup(