Bug 102436 Date/time value not stored correctly in report design
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
inputParameter.setProperty( ScalarParameterHandle.ALLOW_NULL_PROP,
						null );
			}
			if ( DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX.equals( getSelectedControlType( ) ) )
			{
				if ( dirtyProperties.containsKey( CHECKBOX_DO_NOT_ECHO ) )
				{
					inputParameter.setConcealValue( getProperty( CHECKBOX_DO_NOT_ECHO ) );
				}
			}
			else
			{
				inputParameter.setProperty( ScalarParameterHandle.CONCEAL_VALUE_PROP,
						null );
			}
			if ( DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX.equals( newControlType )
					|| DesignChoiceConstants.PARAM_CONTROL_CHECK_BOX.equals( newControlType ) )
			{
				inputParameter.setProperty( ScalarParameterHandle.FIXED_ORDER_PROP,
						null );
			}
			else
			{
				if ( dirtyProperties.containsKey( CHECKBOX_SORT ) )
				{
					inputParameter.setFixedOrder( !getProperty( CHECKBOX_SORT ) );
				}
			}
			
			if ( !isStatic( ) && !StringUtil.isBlank( listLimit.getText( ) ) )