[MC-19106] Loading a world in fullscreen mode crashes the game.

If the game is already in Fullscreen mode, loading a new world of any type will crash the game within 1 second of the loading screen vanishing. Chunks start to load, the player can look around and move for a moment, then the game hangs and Java eventually stops working. The launcher shows exit code 255.

The game DOES NOT hang when you toggle fullscreen in-world, or in-menu, only on world load.

Easily bypassed by just not being in fullscreen when loading a world, but really annoying, especially if you switch worlds a lot or have the in-game Fullscreen option turned on.

This is all the output from the console:

Launcher 1.0 (through bootstrap 4) started on windows...
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.6.0_24'
System.getProperty('java.vendor') == 'Sun Microsystems Inc.'
Going to log in with legacy stored username & password...
Loaded 1 profile(s); selected '(Default)'
Trying to log in...
Delta time to compare resources: 452 ms 
Download job 'Resources' skipped as there are no files to download
Job 'Resources' finished successfully
Logging in with username & password
Logged in successfully
Getting syncinfo for selected version
Queueing library & version downloads
Download job 'Version & Libraries' started (8 threads, 1 files)
Finished downloading C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6.jar for job 'Version & Libraries': Used own copy as it matched etag
Job 'Version & Libraries' finished successfully
Launching game
Unpacking natives to C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6-natives-94137946352390
Launching in C:\Users\Aldrenean\AppData\Roaming\.minecraft
Running C:\Program Files\Java\jre6\bin\javaw.exe -Xmx1G -Djava.library.path=C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6-natives-94137946352390 -cp C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar;C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6.jar net.minecraft.client.main.Main --username Aldrenean --session 29799700c3759939af1be2689525c0a8a8e30ef0 --version 1.6 --gameDir C:\Users\Aldrenean\AppData\Roaming\.minecraft --assetsDir C:\Users\Aldrenean\AppData\Roaming\.minecraft\assets
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- (We'll do this automatically later ;D) ----
Client> 2013-06-25 11:59:23 [CLIENT] [INFO] Setting user: Aldrenean
Client> 2013-06-25 11:59:23 [CLIENT] [INFO] (Session ID is 29799700c3759939af1be2689525c0a8a8e30ef0)
Client> 2013-06-25 11:59:24 [CLIENT] [INFO] LWJGL Version: 2.9.0
Client> 2013-06-25 11:59:24 [CLIENT] [INFO] Reloading ResourceManager: Default
Client> 
Client> Starting up SoundSystem...
Client> Initializing LWJGL OpenAL
Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
Client> OpenAL initialized.
Client> 
Client> 2013-06-25 11:59:28 [SERVER] [INFO] Starting integrated minecraft server version 1.6
Client> 2013-06-25 11:59:28 [SERVER] [INFO] Generating keypair
Client> 2013-06-25 11:59:28 [SERVER] [INFO] Preparing start region for level 0
Client> loading single player
Client> 2013-06-25 11:59:29 [SERVER] [INFO] Aldrenean[/127.0.0.1:0] logged in with entity id 571 at (37.044670150660494, 71.0, 301.096231671369)
Client> 2013-06-25 11:59:29 [SERVER] [INFO] Aldrenean joined the game
Client> Setting up custom skins
Game ended with bad state (exit code 255)
Deleting C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6-natives-94137946352390
Couldn't delete C:\Users\Aldrenean\AppData\Roaming\.minecraft\versions\1.6\1.6-natives-94137946352390 - scheduling for deletion upon exit

The only thing that looks wrong to me is the "Game ended with bad state" line. The line immediately before is related to skins, so the first thing I did was to reset my skin to default, no change. I also entirely deleted my .minecraft directory with the exception of the texturepacks and stats folder, and the lastlogin file.