Bug with Autocompleter not canceling pending Ajax requests causing
potential race condition for onComplete logic.

//I added this function to the Ajax.Autocompleter class

clearPendingRequests: function(){
    this.pendingRequests.each(function(el){if(el)
{el.transport.abort();}});
    this.pendingRequests.clear();
  }

//then updating the last line of the getUpdatedChoices method to be

this.clearPendingRequests();
this.pendingRequests.push(new Ajax.Request(this.url, this.options));

//I also added some simple initialization of the array in the
initialize method
this.pendingRequests        = new Array();

this worked to cancel pending requests before they had a chance to
come back to the onComplete method.


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