Game crashed when using blocks with unusual damage values

I usued an MCEdit filter that places one of every time of block with every possible damage value (0-15). When I was interacting with hoppers with high damage values the game crashed.

Here's the crash report:

---- Minecraft Crash Report ----
// Why did you do that?

Time: 7/1/13 7:39 PM
Description: Ticking tile entity

java.lang.ArrayIndexOutOfBoundsException: 7
	at asb.v(SourceFile:330)
	at asb.u(SourceFile:179)
	at asb.j(SourceFile:165)
	at asb.h(SourceFile:157)
	at abr.h(SourceFile:1268)
	at jp.h(SourceFile:364)
	at net.minecraft.server.MinecraftServer.t(SourceFile:470)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bko.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at hf.run(SourceFile:582)


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

-- Head --
Stacktrace:
	at asb.v(SourceFile:330)
	at asb.u(SourceFile:179)
	at asb.j(SourceFile:165)
	at asb.h(SourceFile:157)

-- Tile entity being ticked --
Details:
	Name: Hopper // asb
	Block type: ID #154 (tile.hopper // aom)
	Block data value: 7 / 0x7 / 0b0111
	Block location: World: (-189,14,69), Chunk: (at 3,0,5 in -12,4; contains blocks -192,0,64 to -177,255,79), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Actual block type: ID #154 (tile.hopper // aom)
	Actual block data value: 7 / 0x7 / 0b0111
Stacktrace:
	at abr.h(SourceFile:1268)
	at jp.h(SourceFile:364)

-- Affected level --
Details:
	Level name: Collidrip
	All players: 1 total; [js['duckcall'/0, l='Collidrip', x=-185.94, y=15.37, z=69.38]]
	Chunk stats: ServerChunkCache: 1003 Drop: 0
	Level seed: -5903267127757355817
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 2;0,0,0;1;villag
	Level spawn location: World: (-207,4,-242), Chunk: (at 1,0,14 in -13,-16; contains blocks -208,0,-256 to -193,255,-241), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 20987 game time, 20987 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 39696 (now: false), thunder time: 151891 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.t(SourceFile:470)
	at net.minecraft.server.MinecraftServer.s(SourceFile:405)
	at bko.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:339)
	at hf.run(SourceFile:582)

-- System Details --
Details:
	Minecraft Version: 1.6.1
	Operating System: Mac OS X (x86_64) version 10.8.4
	Java Version: 1.6.0_51, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 40813272 bytes (38 MB) / 250318848 bytes (238 MB) up to 1069416448 bytes (1019 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 7 (392 bytes; 0 MB) allocated, 7 (392 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1 (56 bytes; 0 MB) allocated, 1 (56 bytes; 0 MB) used
	Player Count: 1 / 8; [js['duckcall'/0, l='Collidrip', x=-185.94, y=15.37, z=69.38]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.