Growing crops give error about unknown property on Farmland

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-1682669/

Crash:

java.lang.IllegalArgumentException: Cannot get property bcl{name=age, clazz=class java.lang.Integer, values=[0, 1, 2, 3, 4, 5, 6, 7]} as it does not exist!
	at bbw.b(SourceFile:91)
	at ayt.b(SourceFile:127)
	at ayt.c(SourceFile:69)
	at ary.b(SourceFile:416)
	at qg.h(SourceFile:373)
	at qg.c(SourceFile:199)

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Sorry :(

Time: 7/9/14 9:49 AM
Description: Exception ticking world

java.lang.IllegalArgumentException: Cannot get property bcl{name=age, clazz=class java.lang.Integer, values=[0, 1, 2, 3, 4, 5, 6, 7]} as it does not exist!
	at bbw.b(SourceFile:91)
	at ayt.b(SourceFile:127)
	at ayt.c(SourceFile:69)
	at ary.b(SourceFile:416)
	at qg.h(SourceFile:373)
	at qg.c(SourceFile:199)
	at net.minecraft.server.MinecraftServer.x(SourceFile:578)
	at net.minecraft.server.MinecraftServer.w(SourceFile:510)
	at cwg.w(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:426)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at bbw.b(SourceFile:91)
	at ayt.b(SourceFile:127)
	at ayt.c(SourceFile:69)
	at ary.b(SourceFile:416)
	at qg.h(SourceFile:373)
	at qg.c(SourceFile:199)

-- Affected level --
Details:
	Level name: I have to start over
	All players: 1 total; [qj['Floidflink'/13, l='I have to start over', x=-835.90, y=95.00, z=70.64]]
	Chunk stats: ServerChunkCache: 1272 Drop: 0
	Level seed: 8177367746328993116
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: -326.00,64.00,277.00 - World: (-326,64,277), Chunk: (at 10,4,5 in -21,17; contains blocks -336,0,272 to -321,255,287), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 916607 game time, 1165062 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 141165 (now: false), thunder time: 121258 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.x(SourceFile:578)
	at net.minecraft.server.MinecraftServer.w(SourceFile:510)
	at cwg.w(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:426)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 14w28a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 67226256 bytes (64 MB) / 489095168 bytes (466 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [qj['Floidflink'/13, l='I have to start over', x=-835.90, y=95.00, z=70.64]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-1682669/69236523/