The problem originally reported here--or a very similar problem--still exists in the latest Oneiric daily-lives. Primarily since this bug seems to have been used to fix the related but different problem of duplicate computer names being an error rather than a warning during installation, and secondarily because I am not certain that the problem in Oneiric is precisely the same as this one, I have reported this as new bug 828181.
The problem originally reported here--or a very similar problem--still exists in the latest Oneiric daily-lives. Primarily since this bug seems to have been used to fix the related but different problem of duplicate computer names being an error rather than a warning during installation, and secondarily because I am not certain that the problem in Oneiric is precisely the same as this one, I have reported this as new bug 828181.