The file name on the server (which will be the file name when users download the file), not the name of the card.
Add +solution
Add +example
Related support tickets:Relevant user stories:add one
Should this be pending use attachment fu for uploads? --John Abbe
yes, name is based on your original filename now, if you don't like it change locally and re-upload :)
--Lewis Hoffman.....Fri Apr 24 10:46:38 -0700 2009
Notes


