breaking change 3.5.1, simple_form stopped working with PORO, doesn't call methods anymore

[srghma]

Environment

• Ruby [2.4.2]
• Rails [5.1.5]
• Simple Form [3.5.1]

Current behavior

Im using delegator

  class UserDecorator < SimpleDelegator
    include ActionView::Helpers::FormOptionsHelper

    def initialize(user, form: nil)
      @form = form
      super user
    end

    def first_name
      require 'pry'; ::Kernel.binding.pry;
      @form&.first_name || __getobj__.first_name
    end
  end

      @user = PhysicalCheckoutPage::UserDecorator.new(
        current_user || User.new,
        form: form
      )

      - presenter.user.first_name

      = simple_form_for(presenter.user,
        as: :user,
        url: physical_checkout_path(presenter.book),
        html: { method: :put, class: 'px-5', id: 'physical-checkout-form' }) do |f|

        = f.input :first_name,
          wrapper_html: { class: 'row' },
          input_html: { required: true, class: 'form-control form-control-sm' },
          label_html: { class: 'h5 custom-dark-grey col-form-label' }

in simpleform 3.5.1 first_name called only once, in 3.5.0 - twice

Expected behavior

call twice

[feliperenan]

@srghma It seems like the same than #1549.

We have included documentation about it, maybe it can help you.

[srghma]

ok, understand, tnx