stacks are horrifically broken

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1647
Key:bingus13

Round ID:

8944

Testmerges:

• [DNM] Aneri except I redid the branch again
• Heliostation from fulp
• 3D printed guns.
• [BOUNTY] Port Skyrat's feature to be able to play the character we want in a ghost role (using character loadouts
• The shot gun
• Lead Poisoning Station: A bizarro station for use on monke
• [Code Bounty] Makes IPC's spew ion laws for a little while after being emagged
• Various internal mechcomp fixes
• Update Medical cyborgs.
• [DNM] The Derelict / KS13 Engineering Update
• Even more various fixes
• Phobia regex should not be a global expression
• Phobias should not prevent forced says
• Spess.tv
• Renaming viro subtypes and fixing disease severities and maintence panels (AKA a bunch of fixes for viro at this point.)

Reproduction:

somehow, while constructing windows the amount of sheets of glass or rods becomes zero??

[DexeeXI]

Think this is a rounding error, though it should never do sub 1 unit items when doing stuff. Would need more info in order to find the issue.