Rails 5.2.1.1 breaks ActiveStorage with Amazon

[gssbzn]

Steps to reproduce

After upgrading to 5.2.1.1 I'm getting on three different applications ArgumentError: unknown keyword: content_type

Example model:

class Post < ApplicationRecord
  has_one_attached :file
end

Example controller

def create
    @post = Post.new(post_params) 
    @post.save
end

Expected behavior

Successfully save the record and upload the associated file to Amazon S3

Actual behavior

Save is raising ArgumentError: unknown keyword: content_type

System configuration

Rails version: 5.2.1.1

Ruby version: ruby 2.5.3p105

[stevenharman]

Hi @gssbzn.

This might be a dup of #34550 and #34551.

[eileencodes]

Closing as duplicate

[gssbzn]

@stevenharman indeed