How to create a record with an ActiveStorage has_one_attached file with strict_loading

In a simple Rails 7 model I have:

has_one_attached :file, strict_loading: true

Now, I want to create a new record:

Model.create(name: 'test', file: params[:file])

But this leads to a ActiveRecord::StrictLoadingViolationError → Model is marked for strict_loading. The ActiveStorage::Attachment association named :file_attachment cannot be lazily loaded.

I’ve tried: Model.with_attached_file.create() and variations with #new and #save but that does not help.

Is there a way? Or is this a bug?

Jan