Ofcourse that makes sense and I agree with you. Happened to me too so now I really take care to not make mistakes.
On the other hand, if no mistake was made and the file already was uploaded or something and the user wants to upload another file (so with another description) then the one he had in mind, he has to wipe the description and stuff.
Little work but still....
However I agree with you that this would happen less, and choosing the wrong file like you describe it could happen more often.
That's why I support your suggestion to change it so the description and stuff will not be wiped. If it's possible to make it ofcource.
But RSJelle can tell us, I'm sure of that.