anchor.diff:                <% if resource == :event_group %>
                   <%= f.hidden_field 'filter[ready_to_start]', value: true %>
                   <%= f.hidden_field 'filter[assumed_start_time]', value: nil,
  -                                   data: {target: 'roster.assumedStartTimeFilter'} %>
  +                                   data: {"roster-target" => 'assumedStartTimeFilter'} %>
                 <% end %>
   
                 <% if resource == :effort %>
  
positive.code: 
                <div class="form-group">
                  <%= f.label :scheduled_start_time %>
                  <p data-target="roster.scheduledStartTime"></p>
                </div>
  
                <div class="form-group">
                  <%= f.label :actual_start_time %>
                  <%= f.text_field :actual_start_time, value: nil, class: 'form-control', autofocus: true,
                                   data: {target: 'roster.actualStartTimeField'} %>
                </div>
  
                <div class="form-group">
  
negative.code: <!--requires local variable 'resource'-->
  
  <div class="modal fade" data-roster-target="startEffortsModal">
    <div class="modal-dialog">
      <div class="modal-content">
        <div class="modal-header">
  