usage_left less than zero is also considered invalid
usage_left less than zero is also considered invalid

uploadcare/django-loginurl,fajran/django-loginurl,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,vanschelven/cmsplugin-journal,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website