Game Crash when use /execute command with /kill @e[tag=any]

Are you running a entitydata command that (could) target a fishing rod dobber in your world?

OK. Found the issue.

1. Throw any item on the ground.
2. Use this command /execute @p ~ ~ ~ kill @e[tag=emerald,r=0]
3. Game crashes.

After you use the fishing rod, right?

No. I will change the ticket name.

I'm so confuse with this .

OK. This is a correct step to reproduce.

1. Installed this map.
2. Try to use fishing rod.
3. Game crash

Maybe caused by my command block contraption.

See MC-102207.

Shouldn't the details be in the other bugreport, too?

What other details, look at the title of that report, the game crashes when a command block with type= is activated in the same tick as using a fishing rod.