After masquerading, return to page I started masquerading from #148

I click the masquerade button on the admin_user_path(:id) (e.g. https://example.com/admin/users/10122496). When I stop masquerading, I'd like to return to that same page.

• I thought Devise.masquerade_routes_back = true would do it but that seems to try to take you to that page when you start masquerading, not when stopping
• I tried overriding after_back_masquerade_path_for(resource) (code below) but it seems to be too late to grab the masqueraded user. Both resource and current_user refer to (what was) the masquerading_current_user
• I hoped maybe I could use *opts with back_masquerade_path(current_user) but I'm not sure where to start

class Admin::MasqueradesController < Devise::MasqueradesController
  protected

  def after_back_masquerade_path_for(user)
    # `user` and `current_user` are both the masquerading user, not the masqueraded user
    admin_user_path(user.id)
  end
end

Am I missing something obvious?