If you get a mob head from creative and then break it in survival mode it crashes the game. Crash log as follow

---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 8/16/15 4:56 PM
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
at acj.j(SourceFile:229)
at bjq.b(SourceFile:50)
at bjq.a(SourceFile:35)
at boa.a(SourceFile:212)
at bny.a(SourceFile:109)
at bny.a(SourceFile:19)
at bnn.a(SourceFile:302)
at bnn.a(SourceFile:267)
at bnn.a(SourceFile:234)
at bjt.a(SourceFile:605)
at bjm.a(SourceFile:1253)
at bjm.b(SourceFile:1158)
at bjm.a(SourceFile:1005)
at ayy.au(SourceFile:905)
at ayy.a(SourceFile:328)
at net.minecraft.client.main.Main.main(SourceFile:125)

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

– Head –
Stacktrace:
at acj.j(SourceFile:229)
at bjq.b(SourceFile:50)
at bjq.a(SourceFile:35)
at boa.a(SourceFile:212)
at bny.a(SourceFile:109)
at bny.a(SourceFile:19)

– Entity being rendered –
Details:
Entity Type: Item (xc)
Entity ID: 11867
Entity Name: ~_ERROR~ NullPointerException: null
Entity's Exact location: -249.36, 70.44, 4.44
Entity's Block location: -250.00,70.00,4.00 - World: (-250,70,4), Chunk: (at 6,4,4 in -16,0; contains blocks -256,0,0 to -241,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Entity's Momentum: -0.07, 0.16, -0.00
Entity's Rider: ~_ERROR~ NullPointerException: null
Entity's Vehicle: ~_ERROR~ NullPointerException: null

– Renderer details –
Details:
Assigned renderer: bny@6fb03f5
Location: 2.18,0.36,1.94 - World: (2,0,1), Chunk: (at 2,0,1 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)
Rotation: 63.28125
Delta: 0.50937235
Stacktrace:
at bnn.a(SourceFile:302)
at bnn.a(SourceFile:267)
at bnn.a(SourceFile:234)
at bjt.a(SourceFile:605)
at bjm.a(SourceFile:1253)
at bjm.b(SourceFile:1158)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [biz['AngelaRose618'/7626, l='MpServer', x=-251.50, y=70.00, z=2.50]]
Chunk stats: MultiplayerChunkCache: 534, 534
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: -248.00,64.00,4.00 - World: (-248,64,4), Chunk: (at 8,4,4 in -16,0; contains blocks -256,0,0 to -241,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 322 game time, 322 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: ~_ERROR~ NullPointerException: null
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bhb.a(SourceFile:314)
at ayy.b(SourceFile:2297)
at ayy.a(SourceFile:337)
at net.minecraft.client.main.Main.main(SourceFile:125)

– System Details –
Details:
Minecraft Version: 15w33c
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 334836032 bytes (319 MB) / 618713088 bytes (590 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 15w33c
LWJGL: 2.9.4
OpenGL: AMD Radeon HD 6410D GL version 4.3.12618 Compatibility Profile Context 13.251.9001.1001, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 2x AMD A4-3300 APU with Radeon(tm) HD Graphics