file field path set to static path publications
file renamed with [node:title].[file:extension]
cleaned up using path auto
1. initially when I add file and hit upload
origional named file is uploaded to server e.g. test.pdf
then I press save; file test.pdf is renamed correctly to the title of node and origional file extention
2. When I edit the same node and remove content type then upload another file it uploads the origional named file test2.pdf to server (now has test-publication-6.pdf and test2.pdf). When I hit save it removes test-publication-6.pdf and renames test2.pdf to test-publication-06.pdf. This name is incorrect, it should be test-publication-6.pdf.
3. if I repeat step 2. I now have a file with the correct name test-publication-6.pdf.
This bug is causing major inconsitancies with file names.