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Changes between Initial Version and Version 1 of Ticket #28242, comment 3

initial	v1
2	2
3	3	As we're already on S3, I felt it is not neccessary to add an extension to the file name (as S3 would already have the Content-Type metadata, which django-storages would set automatically from the original extension). It also make the upload_to function easier to implement.
	4
	5	(edit) I'd like to add that I still think that having extension validator is useful. (For example, user might upload PDF and the error should tell the user to upload in some other formats) That's why I couldn't just disable the default validator.