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
(ListingHandle) tmpContainer.getHandle( module ),
							(GroupHandle) element.getHandle( module ),
							groupName );
			if ( !errors.isEmpty( ) )
				return false;
		}
		return true;
	}
	/**
	 * Clears the value of a property.
	 * 
	 * @param propName
	 *            the name of the property to clear.
	 * @throws SemanticException
	 *             if failed to clear property.
	 */
	public void clearProperty( String propName ) throws SemanticException
	{
		setProperty( propName, null );
	}
	/**
	 * Sets the value of the member of a structure.
	 * 
	 * @param ref
	 *            reference to the member to set
	 * @param value
	 *            new value of the member
	 * @throws SemanticException
	 *             if the value is not valid
	 */