It is no longer possible to place a piston with the head texture on all sides with the command / setblock ~ ~ ~ piston 6.

Launcher Log when using command:
Couldn't process command: 'setblock ~ ~ ~ piston 6'
java.lang.IllegalArgumentException: Cannot set property beo

{name=facing, clazz=class el, values=[down, up, north, south, west, east]}

to null on block minecraft:piston, it is not an allowed value
at bdz.a(SourceFile:124) ~[14w32c.jar:?]
at bdj.a(SourceFile:409) ~[14w32c.jar:?]
at cm.b(SourceFile:92) ~[14w32c.jar:?]
at ab.a(SourceFile:79) [14w32c.jar:?]
at ab.a(SourceFile:62) [14w32c.jar:?]
at rh.d(SourceFile:635) [14w32c.jar:?]
at rh.a(SourceFile:622) [14w32c.jar:?]
at lt.a(SourceFile:37) [14w32c.jar:?]
at lt.a(SourceFile:9) [14w32c.jar:?]
at ig.run(SourceFile:13) [14w32c.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_60]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_60]
at net.minecraft.server.MinecraftServer.y(SourceFile:575) [14w32c.jar:?]
at net.minecraft.server.MinecraftServer.x(SourceFile:530) [14w32c.jar:?]
at cxz.x(SourceFile:155) [14w32c.jar:?]
at net.minecraft.server.MinecraftServer.run(SourceFile:446) [14w32c.jar:?]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_60]
[17:18:28] [Client thread/INFO]: [CHAT] Bei der Ausführung dieses Befehls trat ein unbekannter Fehler auf