[MC-73395] Crash when typing one "@" in a command-block

When I enter "/tp @p -200 70 -200" (for example) : I have an error message about Twitch Broadcasting Unavailable as soon as I type "@".
I'm using a keyboard FR, I have tried with unicode enabled and disabled in "Languages" control panel of Minecraft.

Linked issues

relates to

MC-68399 Pressing the '<' key takes screenshot on certain keyboard layouts

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migrated 2014-10-20T20:52:55Z

Incomplete without a crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.

For technical support please use the Mojang Support Center.

migrated 2014-10-20T21:02:15Z

I found one solution by overriding key assignment in "Controls" panel.
I use "NONE" for "Pause/Unpause Stream" and "NONE" for "Start/Stop Stream" (by pressing 'Escape'). Then, I can enter command with some '@' in a command block without issue. 😉

migrated 2014-10-20T21:09:45Z

I can't found crash report.
I've tried "sudo updatedb" then "locate ~~i crash-reports", but no results... :~~(
I will upload screen-shots of this issue asap.

kumasasa 2014-10-20T21:31:17Z

This is "normal" if you bind start / stop stream to the key where you get the @.
The error message is from the fact that there are no drivers for Twitch for Lnux.

migrated 2014-10-20T21:55:48Z

I have made some tests with streaming controls keys and testing typing in a command-block :
Pause/Unpause Stream = NONE and Start/Stop Stream = NONE => No problem.
Pause/Unpause Stream = F7 (the default key) and Start/Stop Stream = NONE => No problem.
Pause/Unpause Stream = NONE and Start/Stop Stream = F6 (the default key) => Error message about 'Twitch Broadcasting Unavailable'.
The key F6 is guilty 😉
But why F6 = @ ??? (I have never hit the key F6 in my command-block)

kumasasa 2014-10-20T22:35:58Z

That's a mystery like MC-68399