[2.0.20] Underground belt exit ghost replacement fails

[Reydan]

When replacing conveyor ghosts (including underground ones), everything is replaced correctly except for the exit of the underground conveyor belt.

Example of the Issue:

1_split_full.png (1.64 MiB) Viewed 170 times

3_gif_wrong_full.gif (5.85 MiB) Viewed 170 times

Example of a "Workaround":

2_split_no_full.png (1.49 MiB) Viewed 170 times

6_wrong_no_full.gif (3.69 MiB) Viewed 170 times

Steps to Reproduce:
1. Place ghosts with underground conveyors and obstacles
2. Install a conveyor on top of the ghost

Behavior:
The exit of the underground conveyor does not get installed

Note:
If you remove the underground conveyor exit from the ghost, everything works correctly

Expectation:
The ghost should be replaced with conveyors as specified in the ghost

[boskid]

Duplicate 118408