request console messages are broadcasted from every request console, if duplicates exist (security, on kilo)

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:516.1659
Key:banement

Round ID:

10946

Testmerges:

• "Bitrunning is a crime" Glitches, modsuits and balloons
• PDA Alert level
• Domain expansion, CATastrophe!
• Scrap Vehicles 1.5
• [DRAFT] Cult Revamp
• Global AP rebalance (No longer shotgun nerf!)
• Oldstation Updates
• Blueshift MedSec outpost access, tramstation pipes, and roundstart turfs
• Satyr "Living Drunk" Touchups
• Atmos binary device improvements
• Make stack merging much less of a potential lagfest
• Makeshift radio jammers!
• Some relatively minor xenobio touchups/improvements
• Sanitize frequencies passed to broadcast() in NTSL

Reproduction:

some people were actually using the requests console for departmental messages for once, but this resulted in the message getting sent 6 times in a row on security comms. following every console shows them appearing in different security posts.

i guess this was an attempt of making it easier for security to report issues, but instead results in the above