puppetlabs/puppetlabs-apt — pull request #367 by mhaskel (2014-10-02 22:23:47+00:00)
Title: apt-key doesn't add long keys in deb6

You can feed the command the long key, but it truncates it to add the
key. This causes issues due to the short-key collision with the
puppetlabs key. So, test with a different key on debian 6.