Crash when switching between environment types

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What steps will reproduce the problem?
1. Start up the Maze mod
2. Start up any non-FPS mode demo
3. Start up FPS mode demo

What is the expected output? What do you see instead?
It crashes

the specific issue here is that switching between the continuous and discreet 
maze environments causes it to crash.

Original issue reported on code.google.com by AdamDz...@gmail.com on 2 Mar 2011 at 7:10

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Original comment by ikarpov on 7 Mar 2011 at 5:26

• Added labels: maze, Mod-maze

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Original comment by ikarpov on 9 Mar 2011 at 7:59

• Added labels: Milestone-Release2

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This crash happens in AIObject.cpp:70, in code:

{{{
if (getWorld()->is_active(getBrain()))
}}}

when the environment (returned by getWorld()) is null.

Original comment by ikarpov on 16 Mar 2011 at 3:36

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r909 addresses this issue (switching back from first person still keeps the 
camera in first person, another issue) - Adam, please verify

Original comment by ikarpov on 16 Mar 2011 at 4:18

• Changed state: Fixed

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The other issue mentioned above is Issue #52

Original comment by ikarpov on 16 Mar 2011 at 4:21