I have a form with the method set to PUT which I custom render in a template, ie. I'm not using

{{ form(form) }}

or

{{ form_start(form) }}
{{ form_widget(form) }}
{{ form_end(form) }}

I do it more or less like this:

<form>
  {{ form_errors(form) }}
  {# render the columns in a way I need #}
  {{ form_rest(form) }}
</form>

I believed adding the form_rest(form) was enough to make sure non-rendered fields were added (like the _token). It turns out, the hidden field _method, isn't rendered unless you use form_start().

Shouldn't it be logical to have the form_rest also render the _method field if it isn't rendered so before?

The file that's rendering the form:

https://github.com/symfony/symfony/blob/2.7/src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig