if jou join a local server and klick back to game you can edit the server ip from the lan world an then the game will crash o.O

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 01.08.13 23:26
Description: Updating screen events

java.lang.IndexOutOfBoundsException: Index: 3, Size: 3
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at bdk.a(SourceFile:54)
at avk.a(SourceFile:169)
at awb.a(SourceFile:69)
at awb.d(SourceFile:128)
at awb.m(SourceFile:107)
at ats.k(SourceFile:1158)
at ats.S(SourceFile:663)
at ats.d(SourceFile:619)
at net.minecraft.client.main.Main.main(SourceFile:101)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at bdk.a(SourceFile:54)
at avk.a(SourceFile:169)
at awb.a(SourceFile:69)
at awb.d(SourceFile:128)
at awb.m(SourceFile:107)

– Affected screen –
Details:
Screen name: avk
Stacktrace:
at ats.k(SourceFile:1158)
at ats.S(SourceFile:663)
at ats.d(SourceFile:619)
at net.minecraft.client.main.Main.main(SourceFile:101)

– System Details –
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 229842936 bytes (219 MB) / 266600448 bytes (254 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.6.2
LWJGL: 2.9.0
OpenGL: GeForce GTX 650 Ti/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~_ERROR~ NullPointerException: null