FormRow generetes invalid HTML for MonthSelect

FormRow renders invalid HTML for MonthSelect, DateSelect and DateTimeSelect. A label can only be assigned to a single input while the mentioned classes generates a group of inputs.

DateSelect and DateTimeSelect both extends MonthSelect. Hence only checking MonthSelect.

Would I need any tests for this? Should I test the output of FormRow? If so, then I'd also have to check for ext/intl in the test.