If sveral namespaced events are bound to the window object and someone has used doubble whitespace to seperate the events, Opera throws an error: "Uncaught exception: RangeError: Maximum recursion depth exceeded"

Additionally all browsers add a listener for the event "undefined".

You can see an example here: http://jsfiddle.net/trixta/qGkLg/

Although it's a small issue, jQuery either should throw an error, if someone uses doubble whitespaces or should deal with doubble whitespaces.