Based on safety considerations, you upload file system was renamed PDF.

Hey,

Sorry but I do not understand the problem?

Can you give me an example or more details.

Thank you

Matthew

Could you try again with the current version please?
Assuming the issue you mentioned is about Chinese characters sent in the HTTP headers, I tested it myself, and it did work. See the screenshot.

For file names that Drupal can't handle due to multi-byte complexities, consider using the Transliteration module. Also, recent Drupal core versions have utf8mb4 collation support, so the file names can be stored in the database properly.

I'm closing it because the issue was created a long time ago without any further steps.

if you still need it then raise a new one.
thanks