When /give (username) (number-id) (amount) is spammed and the number id is invalid the game will crash as seen in this video here: http://www.youtube.com/watch?v=UCvq3XOhW3I
This is not the case when the new ids are used as seen in this video:
http://www.youtube.com/watch?v=xX-HxNztTBE
Incomplete without crash report (
[minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt). Please attach it so that we can diagnose your issue.