pbs/django-filer-tags — pull request #4 by kux (2013-01-04 12:30:06+00:00)
Title: Delete old version of the file before saving the new one

Since filer no longer overwrites files with the same name (see FILE_OVERWRITE setting in s3boto storage backend)
=> it makes more sense to delete the prev file before saving again, thus avoiding the generation of a new file with a new auto-generated name.