Save object constraints in Asset Browser Collection Instance

Preserve object constraints when using (and making real) collection instances from the Asset Browser.

Context: I made a model which had different objects, each with a child-of constraint linking it to an armature bone so I could pose the objects without any deformation. I wanted to save this model for use in various other files, so I put everything in a collection and saved it as an Asset.

The problem is, when I used the asset to bring a Collection Instance into my new file, and made that instance real, all the constraints between the objects and the bones were gone, and I had to manually reapply them. It would be convenient if the constraints were kept automatically.

It would also be nice if collection structure was preserved in collection instances (or at least after making them real).