Breaking any head (player, skeleton, dragon ect.) in survival mode crashes the game.

Crash report:

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 2015.08.15. 14:10
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: 651
Entity Name: ~_ERROR~ NullPointerException: null
Entity's Exact location: -219,44, 67,69, 261,25
Entity's Block location: -220,00,67,00,261,00 - World: (-220,67,261), Chunk: (at 4,4,5 in -14,16; contains blocks -224,0,256 to -209,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Entity's Momentum: 0,08, 0,16, 0,04
Entity's Rider: ~_ERROR~ NullPointerException: null
Entity's Vehicle: ~_ERROR~ NullPointerException: null

– Renderer details –
Details:
Assigned renderer: bny@4ea43d4d
Location: 2,27,0,69,1,43 - 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: 61.020554
Delta: 0.86784786
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['Gyeni'/464, l='MpServer', x=-221,71, y=67,00, z=259,82]]
Chunk stats: MultiplayerChunkCache: 289, 289
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: -236,00,64,00,256,00 - World: (-236,64,256), Chunk: (at 4,4,0 in -15,16; contains blocks -240,0,256 to -225,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 805 game time, 805 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: survival (ID 0). 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 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 317576032 bytes (302 MB) / 605552640 bytes (577 MB) up to 3817865216 bytes (3641 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 15w33c
LWJGL: 2.9.4
OpenGL: ATI Radeon HD 4250 GL version 3.2.9756 Compatibility Profile Context, 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: Yes
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: 4x AMD Phenom(tm) II X4 840 Processor