Hello,
in our service desk (3.7.0) we have the problem that a preview of a pdf file is only available if the file is attached direct in the issue. If it is attached by mail (added as comment) there is only the option to download and view the file. Even if it's the same file.
When i look in the table fileattachment the mimetype of both entries differs. If the file is attached by mail the mimetype looks like 'application/pdf; name="filename.pdf"' while the mimetype of the direct inserted file (with preview) looks like 'application/pdf'.
Is it a known bug or is it possible to configure as the filename has a own column so the information isn't needed in mimetype?