Kibana version:
7.5.1, 7.6, master

Describe the bug:

Steps to reproduce:

1. Use the sample data and the setup as presented in the screenshot (it can be bar chart).
2. Manipulate time range to select only one bar.
   Bug: The screen is empty (different than no results placeholder though)

Expected behavior:
A single bar appears in the chart.

Screenshots (if relevant):