Bug in automatic underground belt placement

[jchardin64]

Here's the initial setup:

initial.png (646.08 KiB) Viewed 1403 times

I'm going to extend the copper belt by dragging south over the iron belt. This is what SHOULD happen (according to common sense):

should.png (1022.27 KiB) Viewed 1403 times

...but this is what happens instead:

instead.png (1.29 MiB) Viewed 1403 times

[Loewchen]

viewtopic.php?f=48&t=97432