The issue seems to be slightly more subtle (or has changed since originally reported)
Fairly easy to see on these mocks as well, with the rendering being corrected once the users stopps the drag.
http://localhost:3000/devtools/test_dashboard/#basic_bar
http://localhost:3000/devtools/test_dashboard/#stacked_bar
http://localhost:3000/devtools/test_dashboard/#grouped_bar
This is a side effect of @rreusser https://github.com/plotly/plotly.js/pull/762 where
subplot.plot
.selectAll('.points').selectAll('.point')
(unfortunately) also selects <g points> nodes in bar traces. Easy fix coming up.