When I paste an .epub file in the Files App, if the file has been copied with Share/Copy, the file name is kept.
If the file has been copied with UIPasteboard, the file name becomes Publication.epub.
How could I keep the file name?

UIPasteboard=ObjCClass('UIPasteboard')
pb=UIPasteboard.generalPasteboard()
file_data = NSData.dataWithContentsOfFile_(path)
pb.setData_forPasteboardType_(file_data, ns('org.idpf.epub-container'))