Placing wooden slabs crash the game

This only happens with the wood slabs. Not any kind of slabs, just WOOD slabs.

confirmed for OSX Mavericks, Java8
I placed a woodenslab on a wooden slab to make a doubleslab

---- Minecraft Crash Report ----
// You're mean.

Time: 09.07.14 19:12
Description: Unexpected error

java.lang.IllegalArgumentException: Cannot get property bcj{name=variant, clazz=class azb, values=[stone, sandstone, wood_old, cobblestone, brick, stone_brick, nether_brick, quartz]} as it does not exist!
	at bbw.b(SourceFile:91)
	at ami.a(SourceFile:86)
	at cdt.a(SourceFile:295)
	at bqi.ar(SourceFile:1325)
	at bqi.q(SourceFile:1682)
	at bqi.ap(SourceFile:863)
	at bqi.a(SourceFile:303)
	at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
	at bbw.b(SourceFile:91)
	at ami.a(SourceFile:86)
	at cdt.a(SourceFile:295)
	at bqi.ar(SourceFile:1325)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [chv['Bastikeks'/31, l='MpServer', x=101,42, y=90,38, z=112,41]]
	Chunk stats: MultiplayerChunkCache: 289, 289
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: 128,00,17,00,127,00 - World: (128,17,127), Chunk: (at 0,1,15 in 8,7; contains blocks 128,0,112 to 143,255,127), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 6938463 game time, 6000 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: 28 total; [agx['-13-'/0, l='MpServer', x=80,50, y=84,00, z=103,50], agx['ÈúÅ'/1, l='MpServer', x=95,50, y=95,00, z=103,50], agx['-12-'/2, l='MpServer', x=80,50, y=95,00, z=127,50], agx['-11-'/3, l='MpServer', x=80,50, y=84,00, z=151,50], agx['Èù†'/4, l='MpServer', x=95,50, y=95,00, z=151,50], agx['-14-'/5, l='MpServer', x=104,50, y=84,00, z=91,50], agx['-4-'/6, l='MpServer', x=104,50, y=95,00, z=115,50], agx['-3-'/7, l='MpServer', x=104,50, y=84,00, z=139,50], agx['-10-'/8, l='MpServer', x=104,50, y=95,00, z=163,50], agx['Èûõ'/9, l='MpServer', x=119,50, y=95,00, z=91,50], agx['ÈúÅ'/10, l='MpServer', x=113,50, y=95,00, z=127,50], agx['-15-'/11, l='MpServer', x=128,50, y=95,00, z=79,50], agx['-5-'/12, l='MpServer', x=128,50, y=95,00, z=103,50], agx['-1-'/13, l='MpServer', x=128,50, y=84,00, z=127,50], agx['Èù†'/14, l='MpServer', x=143,50, y=95,00, z=127,50], agx['-2-'/15, l='MpServer', x=128,50, y=84,00, z=151,50], agx['Èûõ'/16, l='MpServer', x=143,50, y=95,00, z=151,50], agx['-9-'/17, l='MpServer', x=128,50, y=95,00, z=175,50], agx['-16-'/18, l='MpServer', x=152,50, y=84,00, z=91,50], agx['-6-'/19, l='MpServer', x=152,50, y=84,00, z=115,50], agx['-7-'/20, l='MpServer', x=152,50, y=95,00, z=139,50], agx['-8-'/21, l='MpServer', x=152,50, y=84,00, z=163,50], agx['ÈúÅ'/22, l='MpServer', x=161,50, y=95,00, z=103,50], agx['Èù†'/23, l='MpServer', x=161,50, y=95,00, z=127,50], agx['ÈúÅ'/24, l='MpServer', x=161,50, y=95,00, z=151,50], xf['Painting'/25, l='MpServer', x=180,03, y=5,00, z=111,00], chv['Bastikeks'/31, l='MpServer', x=101,42, y=90,38, z=112,41], xf['Painting'/25, l='MpServer', x=180,03, y=5,00, z=111,00]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at cdu.a(SourceFile:308)
	at bqi.b(SourceFile:2139)
	at bqi.a(SourceFile:317)
	at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
	Minecraft Version: 14w28a
	Operating System: Mac OS X (x86_64) version 10.9.3
	Java Version: 1.8.0, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 105719352 bytes (100 MB) / 273154048 bytes (260 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 14w28a
	LWJGL: 2.9.1
	OpenGL: ATI Radeon HD 4670 OpenGL Engine GL version 2.1 ATI-8.24.13, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
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: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)

I find that slabs will crash game whenever you place a slab when your crosshair is on another slab, this can be above, below or on the sides...

I could only do it when placing a wood slab against any block when it was above a water source. When I tried to replicate the bug though the game never crashed. I could only get the game to crash when placing above that specific water source.

I did what Marcello did, along with the other examples, and did not crash once. With the water source one I lagged a lot, but quickly recovered.