<div data-hook="admin_payment_form_fields">
  <p>
    <%= f.label :amount, t(:amount) %>
    <%= f.text_field :amount, :size => 8, :value => @order.outstanding_balance %>
  </p>

  <% @payment_methods.each do |method| %>

    <label data-hook="payment_method">
      <%= radio_button_tag 'payment[payment_method_id]', method.id, method == @payment_method %>
      <%= t(method.name, :scope => :payment_methods, :default => method.name) %>
    </label>

    <%= render :partial => "spree/admin/payments/source_forms/#{method.method_type}", :locals => { :payment_method => method } %>

  <% end %>
</div>

<div data-hook="admin_payment_form_fields">
  <p>
    <%= f.label :amount, t(:amount) %>
    <%= f.text_field :amount, :size => 8, :value => @order.outstanding_balance %>
  </p>

  <% @payment_methods.each do |method| %>

    <label data-hook="payment_method_field">
      <%= radio_button_tag 'payment[payment_method_id]', method.id, method == @payment_method %>
      <%= t(method.name, :scope => :payment_methods, :default => method.name) %>
    </label>

    <%= render :partial => "spree/admin/payments/source_forms/#{method.method_type}", :locals => { :payment_method => method } %>

  <% end %>
</div>

Rename payment_method hook in admin/payments/_form to payment_method_field
Rename payment_method hook in admin/payments/_form to payment_method_field

This hook conflicts with the hook in payment_methods/_form

Fixes #1737
