Fire Mission Giving Low Ammo Error when fully loaded

[cm13-issue-bot]

Testmerges

#6334: 'Xenomorph Endgame' by Git-Nivrak at commit f69b5c5dcd
#6071: '[V] Sorokyne Strata: Expanded Small corridors, removed 3000 unused tiles, allow LAZ for CAS inside most structures, Xenos can now weed everything except LZ's and surrounding of LZ's.' by Venuska1117 at commit 9d5e6d4658
#5265: '(WIP) Paperwork Prefabs' by realforest2001 at commit 991981d957
#6248: 'New Map: LV-759 Hybrisa Prospera' by Zenith00000 at commit e947b927db
#6821: 'Shrapnel smooth movement' by Doubleumc at commit f8fca5f27e
#6783: 'New "Bulky" computers, small bug fixes also related to computers, addition of altitude controller to the CIC' by LC4492 at commit 71f595f697
#6712: 'Use DVIEW' by Doubleumc at commit f4b53dd614
#6692: 'Use RANGE_TURFS' by Doubleumc at commit 834383bfa0
#6682: 'Hugged changes' by zzzmike at commit 901f664a71
#6671: 'Successful AA interceptions now destroy the hijacked shuttle and end the round' by blackdragonTOW at commit 2a5bbd200b
#6652: 'autoclimbable handrails on harm intent' by cuberound at commit 7952d21d5d

Round ID

23342

Description of the bug

Screen beeps with an error: Weapon GAU-21 30mm cannon (80/400) mounted on starboard fore weapon attach point has not enough ammunition to complete this Fire Mission when the GAUs are all fully loaded

What's the difference with what should have happened?

The FM should have fired

How do we reproduce this bug?

1. Reload GAU when the box was not fully spent
2. Try to fire an FM when requiring more ammo than was previously loaded.

Attached logs

Screen beeps with an error: Weapon GAU-21 30mm cannon (80/400) mounted on starboard fore weapon attach point  has not enough ammunition to complete this Fire Mission

Additional details

• Author: CampinKiller
• Admin: SmellyHippie
• Note: Both cannons were indeed fully loaded when examined, on the computer, and in the VV panel.