<%
  @owner_id = owner_id_line(@observation)
  @title = add_sequence_title(@observation)
  tabs = [
    link_with_query(:cancel_and_show.t(type: :observation),
                    @observation.show_link_args),
    link_with_query(:sequence_add_edit.t, controller: :observer,
                    action: :edit_observation, id: @observation.id)
  ]
  @tabsets = { right: draw_tab_set(tabs) }
%>

<%= form_for(:sequence, url: {action: :add_sequence}) do |form| %>
  <%= render(partial: "form_sequence", locals: {form: form}) %>
<% end %>

<%
  @owner_id = owner_id_line(@observation)
  @title = add_sequence_title(@observation)
  tabs = [link_with_query(:cancel_and_show.t(type: :observation),
                    @observation.show_link_args]
  @tabsets = { right: draw_tab_set(tabs) }
%>

<%= form_for(:sequence, url: {action: :add_sequence}) do |form| %>
  <%= render(partial: "form_sequence", locals: {form: form}) %>
<% end %>

Remove edit_observation link on add_sequence page
Remove edit_observation link on add_sequence page

Makes no sense. This must have been an artifact of creating this file by copying create_observation template.
