Setting the value of the calendar to undefined doesn't deselect the day that was previously selected

[santiagopuentep]

Before you start - checklist

• I followed instructions in documentation written for my React-Calendar version
• I have checked if this bug is not already reported

Description

I set the value to a certain date and that day turns blue. If I then set the value back to undefined, the day is still blue.

Steps to reproduce

1. Set the value prop to a day.
2. Set the value prop to undefined.
3. See how the day that was set in step 1 is still blue.

Expected behavior

The blue color should disappear if no date is selected.

Actual behavior

The blue color is still there as if there was a date selected, but the value is undefined so there shouldn't be any.

Additional information

No response

Environment

• React-Calendar version: 4.8.0
• React version: 18.2.0

[rlebascle]

@santiagopuentep If you set the value to null it will work as expected.

[santiagopuentep]

@santiagopuentep If you set the value to null it will work as expected.

It worked. Thanks! It still looks like a bug so I'll leave the issue opened.

[jul0706]

It doesen't work for me. In mode allowPartialRange=true, if selected just a begin of date ranges, when I want clear values, I get setValues(null), but the blue color is still there. If selected both of values date range, clearing (setValues(null)) is working.
React-Calendar version: 4.8.0
React version: 18.2.0

[rlebascle]

@jul0706
Yes, I have met that bug too. But it doesn't seem to be related to allowPartialRange=true, it also happen with selectRange only.
I did investigate and it seems to come from that line:
https://github.com/wojtekmaj/react-calendar/blob/v3.0.0/src/Calendar.jsx#L176
I didn't manage to fix it. From what I understand the Calendar is holding a "state" value internally.

[rlebascle]

I made a code sandbox to reproduce the bug.
Code sanbox

[github-actions]

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