Preserve uploaded file names (#3412)
* document embed params
* fix tests
* cleanup
* cleanup
* cleanup
* revert
* changelog
* changes
* merge
* fix paths
* uploaded files
* persist file names
* changelog
* formatting
* remove orig_name
* remove orig_name
* rm method
* pathlib
* remove test
* fix tests
* lint
* fix model3d issue
* remove zip
* fix tests
* fix tests
* formatting
* fix test
* fix test
