Zimbra won't install on Debian testing

When attempting to install or upgrade Zimbra on Debian testing you will get a message regarding an incompatible platform (DEBIANUNKNOWN).

Change to your install directory (installdircetory/packages):

Repeat for each Zimbra Debian package

dpkg-deb -R package tempdir

In tempdir/DEBIAN/control change

Version: 7.1.3_GA_3346.DEBIAN5
to
Version: 7.1.3GA3346.DEBIANUNKNOWN

dpkg-deb -b tempdir package

(dpkg-deb will complain about the underscores, so remove them)

rm -R tempdir/*

After doing this for each package:

./install.sh --platform-override