Real-Time Map description switches to "There is no data for this report." #17099

reported in https://forum.matomo.org/t/frage-zur-besucherkarte-in-echtzeit/40267

The header of the real-time map seems to switch to an error message after a few seconds even though the map loads fine.

https://user-images.githubusercontent.com/6266037/104736232-f1bbb200-5742-11eb-8421-d3e4c3d3d913.mp4

Interestingly I can't reproduce this issue on demo.matomo.org

There is no error in the JS console

Seems that the case when the ajax request, that is sent periodically to fetch new visitors, does not have any results

Okay, I found a bit more details. Indeed the initial request returns data, but the ones afterwards don't.
The first one sends &minTimestamp=0 and the ones afterwards send &minTimestamp=1610714405 and I guess if there were no new visits since the text is incorrectly updated.