Broken Ingot Mold shows as a valid mold.

Title: Broken Ingot Mold shows as a valid mold.
Reproduction Rate: 100%
Blocker? no
Details: Broken Ingot Mold shows as a valid mold. This is vary confusing when paired with "Prosperity tools not registering on crafting stations"

1. Steps to Reproduce:
2. Collect items for Copper Ingot from Scrap
3. Make sure the only Ingot mold you have is broken
4. Go to crafting station
5. Look at recipe
6. Try to double-click recipe (it fails, correctly)

User Specs:
Core i7-4790K
16G Ram
GeForce GTX980
Win 10 Pro, 64-bit

Edit: Screen shot

 

I think 0/0 is actually busted while 0/1 to 0/100 is broken but use-able but each use will take 1 off of primary durability till it's useless

 

I had this happen in r 27, but I think it's still a bug. When the mold hits 0/ anything, it is broken and the odds of success go way down... You can still use it if you want to, but I found that when it hits 0/0 the odds of success are nearly zero... I burned a lot of coal before I felt it wasn't worth using, and tried a new mold, I succeeded the first try...

I think there needs to be a warning "this mold is broken", "this mold is not usable" or simply not allow it to be used at all...

 

I found I could not use a 0/0 mold at all. I think this is correct behavior, but it should be greying out the mold requirement because the mold cannot be used. To clarify, it is my belief this is a purely cosmetic bug, it just needs to be showing it as invalid.

This is different from the R27, which allowed the 0/0 mold to be used (which AFAICT was a bug, and is now fixed).