Initial render is black until a node section is open

[dictoon]

On a fresh installation of Blender 2.82a: with the default cube scene, go to Shading, create asStandardSurface and asClosure2Surface nodes, connect them together and click in the render to refresh it: the default cube appears black:

Now open one of the section of the asStandardSurface node: the cube now renders correctly:

[jdent02]

This appears to be a limitation in Blender itself. For some reason in the default material shader tree custom socket classes do not trigger refreshes. And I don't see a way to manually trigger a refresh