There seems to be some magic going on between reportbug and the Debian bugtracker, which caused the offending message to be re-encoded so Icedove no longer shows the described behaviour. Please see *this* attachment instead, which is the offending message again, but explicitly piped through base64(1) by me to (hopefully) prevent any re-encoding.
Cheers, - Roland
offending-mail-base64d.eml
Description: application/extension-eml
