collection_check_boxes hidden field ignores :form option

[stimlocy]

hidden field generated from collection_check_boxes ignores form: as html_options

Steps to reproduce

<%= form_with(url: parents_url, scope: :search, method: :get, id: 'myform') do |f| %>
  <%= f.search_field :name %>
  <%= f.submit %>
<% end %>

<%= collection_check_boxes :search, :parent_ids, Parent.all, :id, :name, {}, {form: 'myform'} %>

Expected behavior

<form id="myform" action="http://localhost:3000/parents" accept-charset="UTF-8" method="get">
  <input type="search" name="search[name]" id="search_name">
  <input type="submit" name="commit" value="Save Search" data-disable-with="Save Search">
</form>

<input form="myform" type="hidden" name="search[parent_ids][]" value="" autocomplete="off">
<input form="myform" type="checkbox" value="1" name="search[parent_ids][]" id="search_parent_ids_1">
<label for="search_parent_ids_1">Parent_1</label>

Actual behavior

<form id="myform" action="http://localhost:3000/parents" accept-charset="UTF-8" method="get">
  <input type="search" name="search[name]" id="search_name">
  <input type="submit" name="commit" value="Save Search" data-disable-with="Save Search">
</form>

<input type="hidden" name="search[parent_ids][]" value="" autocomplete="off">  <!-- not exist form="myform" -->
<input form="myform" type="checkbox" value="1" name="search[parent_ids][]" id="search_parent_ids_1">
<label for="search_parent_ids_1">Parent_1</label>

Probably the same problem as #12344

System configuration

Rails version: 7.1.3.2
Ruby version: 3.3.0

Using collection_check_boxes inside a form is fine, but if you want to use them outside of a form, it is convenient to be able to use the :form option.
For now, I am using include_hidden: false and <%= hidden_field_tag 'search[parent_ids][]', {}, form: 'myform' %> to work around the problem.

Let me know if there's any additional information needed.