Polyline Entity is not rendered in request render mode

[ggetz]

What happened?

Loading a GeoJSON data source with a polyline would trigger a frame in request render mode, up to version 1.1115. Starting in 1.116, a render is not longer triggered, and requestRender needs to be manually invoked.

Based on the original blog post about the feature, loading new datasources should trigger a render, and I think all entities fall under that.

Reproduction steps

1. Open the linked Sandcastle
2. See that the polyline is not rendered
3. Move the view
4. See the no-rendered polyline

Sandcastle example

Sandcastle

Environment

Browser: All CesiumJS Version: Starting in 1.116 Operating System: All