You can get rid of pillars, even though you probably shouldn't be able to

Issue description

1. look for a spot with a pillar
2. attach a transport to it to create a connector
   2a) if there's more than 1 transport sharing the same pillar, attach to all
3. creating a connector moves the pillar to under the new connection, as connectors cannot have pillars under them
4. remove the new connection(s), there's now no pillar

Expected behavior

Pillar is put back in the previous spot? Or not moved in the first place.

Reproduction steps

See description

Game version

0.4.12e

Attachments

I posted some pictures on discord
https://discord.com/channels/803508556325584926/883590993063051275/1029282446795091968

Stumbled across this when I was investigating why my blueprints weren't working. Seems I had accidentally removed a pillar this way and then created a blueprint. When subsequently placing the blueprint, the section that is unsupported by pillars will not be built at all. +1 to fix this. Probably easiest to allow pillars under connectors.

It's the same with the pipes. 0.7.9 (b495)