FTPDIR="/srv/upload.debian.org/ftp/pub/UploadQueue/"
SSHDIR="/srv/upload.debian.org/UploadQueue/"
-yes n | find ${FTPDIR} -type f -mmin +15 -print0 -exec mv -i --target-directory=${SSHDIR} "{}" +
+find ${FTPDIR} -type f -mmin +15 -print0 -exec mv --no-clobber --target-directory=${SSHDIR} -- "{}" +