Zero Length Strings

AKA the Killtarget bug. This one came up during Map Jam 7, and it’s a bug which affects classic Quake and Quoth alike (note to future readers, if Quoth is past version 2.2 then this is no longer the case…). It manifests itself when a rogue entity deletes everything on the map without a targetname – including the player! This is obviously a showstopper, but to understand why it happens we need to explore a subtle detail of the QuakeC language.
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