Calendar Heatmap - Shows unexpected null dates

[arthurmaenhout]

I'm making use of the calendar heatmap chart, but i'm getting unexpected null dates for a month outside of the filter.

How to reproduce the bug

1. create heatmap calendar
2. set filter to 2021-05-01 minus two months (see underneath)
   

Expected results

Actual results

But as can be seen on the image underneath, we have a full month with null values

Checklist

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

[Shazad-khan]

It is working as expected please recheck the issue and close this bug

[rusackas]

Can anyone confirm if this is still an issue in 3.x?

[vankeer]

I just stumbled upon this when installing & using the latest version from master. This is still an issue.

It is working as expected please recheck the issue and close this bug

You have to enable "Show values" under the "Customize" tab.

[sra]

This is happening for us in 4.0.2