What happens: The resulting page has two info alerts, "Thank you for your bug report" and "The file 'whatever' was attached to the bug report".
What should happen: The page has only one info alert, "Thank you for your bug report". An alert about an attachment should appear only if you attach a file to an existing bug report, without also adding a comment.
1. Report a bug with an attachment included.
What happens: The resulting page has two info alerts, "Thank you for your bug report" and "The file 'whatever' was attached to the bug report".
What should happen: The page has only one info alert, "Thank you for your bug report". An alert about an attachment should appear only if you attach a file to an existing bug report, without also adding a comment.