Restore template content when deleting template

When the template content was renamed in
9ee8610da0 I missed doing the same change for the
delete template route.

This commit does the same fix, so that template content is still visible when
you’re about to delete a template (so you can make sure it’s the right one).

app/main/views/templates.py

@@ -92,6 +92,7 @@ def delete_service_template(service_id, template_id):
         else:
             raise e
 
+    template['template_content'] = template['content']
     form = TemplateForm(**template)
 
     if request.method == 'POST':

tests/app/main/views/test_templates.py

@@ -95,8 +95,11 @@ def test_should_show_delete_template_page(app_,
                 service_id=service_id,
                 template_id=template_id))
 
+    content = response.get_data(as_text=True)
     assert response.status_code == 200
-    assert 'Are you sure' in response.get_data(as_text=True)
+    assert 'Are you sure' in content
+    assert 'Two week reminder' in content
+    assert 'Your vehicle tax is about to expire' in content
     mock_get_service_template.assert_called_with(
         service_id, template_id)