         @previousAutoSelect = null if @completions[0]?.autoSelect and @completions[0]?.forceAutoSelect
         @updateSelection()
         @addPromptedText()
+        @lastUpdateTime = new Date()
         callback?()
 
   updateOnInput: =>

    @completions = []
    @previousAutoSelect = null
    @previousInputValue = null
    @suppressedLeadingKeyword = null
    @selection = @initialSelectionValue
    @keywords = []

      @selection = @completions.length - 1 if @selection < @initialSelectionValue
      @updateSelection()
    else if (action == "enter")
      # <Enter> immediately after new suggestions have been posted is ignored.  It's all too common that the
      # user gets results they weren't intending.
      return if @lastUpdateTime? and new Date() - @lastUpdateTime < 250 and @inputContainsASelectionRange()
      @lastUpdateTime = null
      if @selection == -1
        query = @input.value.trim()
        # <Enter> on an empty query is a no-op.
        return unless 0 < query.length
        # If the user types something and hits enter without selecting a completion from the list, then:
        #   - If a search URL has been provided, then use it.  This is custom search engine request.
