Modify behaviour of `AM::Errors#to_h`:

- `AM::Error#to_h` was kind of broken before and would return in the
  hash values a single error message.

  ```ruby
    person = Person.new
    person.errors.add(:name, "cannot be blank")
    person.errors.add(:name, "too long")

    puts person.errors.to_h # {name: 'too long'}
  ```

  Since an attribute can have different errors, the previous behavior
  didn't make much sense.

  Now, `ActiveModel::Errors#to_hash` correctly returns an array of
  error messages containing all the errors for an attribute.
  However, one can easily be surprised by this change, so let's
  deprecated it first.

0 files changed, 0 insertions, 0 deletions