Once they revive the ghost (at the new position) it will appear at it's old position.
How to reproduce:
- Place a roboport with construction bots near position x=0, y=0
- Place a ghost anywhere on the map (outside network works too)
- Hover over the ghost and run /c game.player.selected.teleport{0,0}
- Insert the required items to build the ghost into a storage chest in the network