Graph in dashboard not refreshing when panning

I have several graphs in a dashboard which are grouped via `GROUP BY time(:interval:)`

This is working nicely on displaying large timespans and the data is dynamically refined upon zooming in.

However, if I pan on a zoomed in plot, the data is not refreshed at all, which of course results in no data being displayed in the time range that was outside of the visible area.

Is there anything special I need to do in order to make Chronograf to dynamically load the data for the time span?

(I am currently using Chronograf 1.7.8, but the behavior was the same on previous releases).

Reproduce the issue in a Chronograf dashboard using graphs grouped by GROUP BY time(:interval:) and pan after zooming in. Trace the dashboard’s pan and data-refresh behavior; the fix is complete when panning loads data for the newly visible time range instead of leaving it empty.

Written by the indexing model from the issue text.