If a select is populated with, say, months, where leading zeros are added to numeric values (e.g. December is 12 but January is 01) the correct value should be selected after saving.

However, this isn't the case. I think it's these lines in 2.2.4, includes/types/CMB2_Type_Multi_Base.php:77:

	if ( is_numeric( $value ) ) {
		$value = intval( $value );
	}

Is there a reason for this?