           <div className="col-xs-10">
             <MentorsForDisplayingFilter 
               mentors=filteredMentors
-              selection=@state.mentorsToDisplay
+              selection=_.keys(selectedMentors)
               onChange=@onChangeSelectedMentorsToDisplay
             />
           </div>

      <button 
        onClick=@selectAll
        className="btn btn-default col-xs-2">
          Select All ({_.size @props.mentors})
      </button>
    </div>


      selectedIds.push id if @props.mentors[id]?
    value = selectedIds.join @DELEMITER
    if value.length == 0 then value = null
    sizeLabel = 
      if _.size(@props.mentors) > MAX_MENTORS_TO_DISPLAY
        <span>
          ({MAX_MENTORS_TO_DISPLAY} von {_.size @props.mentors}) <br />
          <strong>Max. erreicht</strong>
        </span>
      else
        <span>({_.size @props.mentors})</span>

    <div className="mentors-display-filter row">
      <div className="col-xs-10">
