The game crashes every time I try to open the world with this item. The game does not crash if the item spawns in your inventory instead of your hot bar, unless you open it.
What I expected to happen was...:
I expected to receive an item.

What actually happened was...:
The game crashed.

Steps to Reproduce:
1. Place a command block
2. Use this command: /give @p leather_chestplate 1 -1 {display:{Name:"Assassin's Robes",color:14540253}}
3. power command block.

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 12/28/13 11:03 PM
Description: Reading NBT data

java.lang.ClassCastException: dt cannot be cast to dg
at dg.m(SourceFile:211)
at zs.b(SourceFile:168)
at zs.a(SourceFile:135)
at bor.a(SourceFile:356)
at bor.b(SourceFile:400)
at bao.a(SourceFile:744)
at bao.a(SourceFile:123)
at bmm.b(SourceFile:834)
at azi.ah(SourceFile:787)
at azi.f(SourceFile:711)
at net.minecraft.client.main.Main.main(SourceFile:152)

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

– Head –
Stacktrace:
at dg.m(SourceFile:211)

– Corrupt NBT tag –
Details:
Tag type found: STRING
Tag type expected: COMPOUND
Tag name: display
Stacktrace:
at dg.m(SourceFile:211)
at zs.b(SourceFile:168)
at zs.a(SourceFile:135)
at bor.a(SourceFile:356)

– Item being rendered –
Details:
Item Type: zs@4b144ba2
Item Aux: 0
Item NBT:

Item Foil: false
Stacktrace:
at bor.b(SourceFile:400)
at bao.a(SourceFile:744)
at bao.a(SourceFile:123)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bkf['Ninjatoon24'/6274, l='MpServer', x=-41.37, y=36.62, z=23.54]]
Chunk stats: MultiplayerChunkCache: 0, 0
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (0,6,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 470079 game time, 470079 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 1 total; [bkf['Ninjatoon24'/6274, l='MpServer', x=-41.37, y=36.62, z=23.54]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bka.a(SourceFile:289)
at azi.b(SourceFile:1952)
at azi.f(SourceFile:720)
at net.minecraft.client.main.Main.main(SourceFile:152)

– System Details –
Details:
Minecraft Version: 1.7.4
Operating System: Mac OS X (x86_64) version 10.8.5
Java Version: 1.6.0_51, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 122355624 bytes (116 MB) / 269410304 bytes (256 MB) up to 1065025536 bytes (1015 MB)
JVM Flags: 1 total; -Xmx1G
AABB Pool Size: 17763 (994728 bytes; 0 MB) allocated, 17763 (994728 bytes; 0 MB) used
IntCache: cache: 1, tcache: 1, allocated: 12, tallocated: 94
Launched Version: 1.7.4
LWJGL: 2.9.1
OpenGL: Intel HD Graphics 4000 OpenGL Engine GL version 2.1 INTEL-8.16.74, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [OCD-pack-172]
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 32 (1792 bytes; 0 MB) allocated, 32 (1792 bytes; 0 MB) used
Anisotropic Filtering: Off (1)