jquery/jquery — comment on commit 6c2a501de40a5f6b3ad382e2d309e5a10fce04d0
File: src/core.js line 806
By mdomba:

Sorry to jump here and excuse me if I'm wrong, but I'm not clear why is the variable "key" created here and set to null... will not that prevent the access to the same name parameter "key"