Rails 8: Cannot change default currency

[SylarRuby]

In the latest rails 8.0, I could not seem to change the default currency from usd to gbp.

Things I've tried:

# initializers/money.rb

MoneyRails.configure do |config|
  config.default_currency = :gbp
  # config.default_currency = -> { :gbp }
end

Have also tried, in model:

# Meal.rb

register_currency :gbp # does nothing

# with_currency does nothing
monetize :price_cents, with_currency: :gbp

In rails console

Meal.last.price.currency.name #= "United States Dollar"

A workaround was to use a callback in the model:

[...]

after_initialize do |meal|
    self.price_currency = Money::Currency.new(:gbp)
   # If we kept register_currency :gbp, we could do:
   # self.price_currency = Meal.currency
end

Nothing actually works as per documentation. Has this issue been addressed, but not reflect on the documentation?

Thanks