[9.78] upload workflow improvement

[kiranetph]

For the flow upload:
Based on experience from daily use with encoders, sometimes after successful upload of a file the users exit the record form without saving it.

I would propose following workflow:
If you upload file(s), save(apply) the record immediately after successful upload

If it is a new record, "cancel" should act like "delete" if the new record was already saved.

[Serhioromano]

Since new record cancel is deleted then the user has to save the first record anyway. So that may stay untouched.

I made it so that if article is saved and you upload file, you do not need to save article.