Month Rangepicker selectableRanges error

[bhcha]

Describe the bug

When using selectableRanges option for monthdatepicker, selecting the first month throws an error.

To Reproduce

Steps to reproduce the behavior:

1. Go to start month picker
2. Click on current month
3. See error

Screenshots

Desktop (please complete the following information):

• Browser: chrome

Additional context

selectableRanges: [
                    [today, new Date(today.getFullYear() + 1, today.getMonth(), today.getDate())]
                ],
                format: 'YYYY-MM',
                type: 'month'