Calendar pop-up stores bad date when clicked outide the selected month

[TomHolan]

Issue Description

Setting the date for the task,
there is an date-selector,
clicking on a date it closes and stores date selected
BUT
in the case of click on the dae outside of the selected month
it also closes, but different date is stored.

Environment

Win10, Chrome.

Steps to Reproduce

• Edit Assignment Settings
• click the textbox unded "Deadline:"
• click day in the calendar popup

Expected Behaviour

store the date clicked
OR say that user has to select appropriate mont before OR do not allow to click day out of the current month

Actual Results

stores uncorrect date

[krulis-martin]

This is a bug in react-datetime package. It has already been fixed (arqex/react-datetime#848), but the PR has not merged yet. Awaiting the new release of that package.