Can't set User Param Binding to override mesh in a Niagara Mesh Renderer

The User Param Binding seems to be typed as UStaticMesh, which does not allow fort UObject or UNiagaraDataInterfaceStaticMesh types to be added to its drop-down, so no user parameters can be selected for use.

1. Create a Niagara System with a mesh renderer
2. Add two new user parameters of Object and Static Mesh types
3. Go to the renderer properties, and find the User Param Binding parameter on the renderer for overriding the mesh
4. Click to select from the drop-down

RESULT

Neither user parameter is found in the menu