apt-get build-essential aptitude
apt-get source aptitude
cd aptitude-0.6.11

$EDITOR src/cmdline/cmdline_changelog.cc:341 src/view_changelog.cc:410
→ Change to [...] Origin(), "Devuan") [...]

$EDITOR src/gtk/changelog.cc
→ There's another "Debian" to change to "Devuan", but I didn't note
the line number...

dpkg-buildpackage -b -us -uc
then go eat a pizza or something! :)

Long-term proposal: we should run a changelog file server (such as
<http://metadata.ftp-master.debian.org/changelogs/>) and point various
files (more than the mentioned above) there, since pbviously these
changes alone won't help with Devuan modified and original packages!