It appeared when I typed /give 36. This item was removed in snapshot 13W37A.
After pressing 'Enter', the server crashed and everybody got "End of Stream".
MC-33067
End of Stream
Resolved
Duplicate
0
MC-32880
Block was removed from the game, why should you give it to yourself then?
Anyway, this is a Duplicate. Use search function before making a new bug report. Thanks you!