Uploading changes original on my computer
I just uploaded a file to share for the first time. The file was processed and displayed on the MuseScore site. As soon as I saw the file on the website, I realized I made a mistake (which I understand and can fix). The problem is that the original file on my network now displays a notice that it is corrupt. When I click on "Ignore" and open the file anyway, I see the same problem as was displayed in the version on MuseScore. In other words, it appears that my original was replaced as part of the upload process. Is this normal behavior?
It's understandable that some checks are done on files as they are uploaded. But under no circumstances should the original file on one's private machine be altered -- this is completely unacceptable. (I do have backups, so all is not lost.) Comments?