In WidgetKit with dynamic data, how to specify the default IntentConfiguration for new widgets?

The desirable example is exhibited by the Apple Notes widgets. When adding an Apple Notes widget, WidgetKit goes ahead and assigns an IntentConfiguration to the new widget. You can see this by editing the widget and noticing that the selection element does not read "Choose" but instead includes the name of the note or folder that was automatically selected as default for the new widget. You'll also notice that this placeholder widget's data source does not change from one source to another – the assigned IntentConfiguration is respected.

How can we do this in our Widgets? It should look like this: someone creates a new widget, we use their most recent data item for the placeholder, and that item is 1) persisted in the Widget until they change it 2) reflected in the edit widget dialogue.