Boxi

1. Use a backup location in Boxi that has an Exclude Pattern such as
ExcludeFilesRegex = .+\.([aA][vV][iI]|[iI][sS][oO])$
2. Run the backup on a directory that contains n files: 2 files that match
the pattern, n-2 others
3. Backup runs fine, but the results on the "Backup Progress" tap are
wrong: n-2 elapsed, 2 remaining, n total
4. On the "Compare Progress" tab, the results are correct: n-2 elapsed, 0
remaining, n-2 total

Expected result: Backup should not count the exluded files in neither Total
nor Remaining.