Broken Tiles Icon Bugged

[kugamo]

Issue Description:

For plasteel tiles, when destroyed/damaged their icon is broken, appearing like bare plasteel turf but also still hiding floor objects like pipes. You have to use crowbar on these tiles to remove the invisible broken tiles.

What did you expect to happen:

A broken plasteel tile icon to be displayed.

What happened instead:

A bare plasteel turf icon showed instead, while also obscuring floor objects like there was supposed to be a plasteel tile there.

Why is this bad/What are the consequences:

Its totally janky yo. Confusing and buggy.

Steps to reproduce the problem:

Explode/Burn plasteel tile turfs

When did the problem start happening:

With the new update_icon() port ??? unknown

Extra information:

https://user-images.githubusercontent.com/16618648/184549087-90c311cf-e812-4551-86aa-c7db90a2770f.mp4