maxDate keyboard error

[silbulatovich]

Describe the bug
The app crashes when you use a maxDate, today for example and input a future date with the keyboard.

Expected behavior
1- Set a maxDate
2- input a date outside the maxDate range
3- pick the year to choose another date

Error
"selectable[0] is undefined"

Screenshots

[zheyujie]

I have fixed this issue in my fork and published it as a new package since the author no longer maintains this repo.
https://github.com/zheyujie/semantic-ui-calendar-react