Crashing when compiled with address sanitization

I'm using clang 6.0.0 on Ubuntu 18.04.

OpenArena compiled with address sanitization crashes on startup with the following error: [Full output](https://gist.github.com/hpoggie/72e52ec90464d27b8786bc4d08e40678)

Blacklisting this allows the game to start up, but crashes upon entering a map with a different error: [Output](https://gist.github.com/hpoggie/d1723a1bad49e392d939511bfaca1db1)