[0.13.6] "drop_position" for Inserter ghosts?

[lyravega]

"drop_position" for Inserter ghosts is nil. The doc states this: "Meaningful only for entities that put stuff somewhere, such as mining drills or inserters.". However, since we can see the drop positions of ghosts, it must be stored somewhere, no?

Edit: The question is, how to access this property. I can check "pickup_position" for example, but "drop_position" is nil for inserter ghosts.