Package: libnss-unknown Version: 0.0.2 libnss-unknown modifies getpwuid to never return NULL; but this is how adduser determines whether a user id is unused. This makes libnss-unknown problematic to install, because installation of other packages will fail if they require users of their own.
It's possible that libnss-unknown is still useful in some corner cases, but it really should warn very loudly about this problem if it cannot be fixed properly.
