Snapshotting UISearchContainerViewController

[Stengo]

I noticed that snapshotting UISearchContainerViewController results in an empty image.

It seems like Apple does not follow any of it's own rules in this component, as it has neither child view controllers nor subviews in its view.
Similarly, the UISearchController it contains also does not seem to have a proper UIKit 'handle' on its searchResultsController, so even going down the hierarchy one step doesn't help.
I tried going with XCUITests and simply snapshotting the entire screen, but while that works it is dreadfully slow.

Does anyone have any creative ideas for how to handle this odd case? 🤔