problen with pw useradd?

[Anton Shterenlikht]

>Hello list!
>
>I have a strange problem when trying to install dns/rbldnsd.
>
>Problem is that there is no user rbldns trying to pw useradd there is a 
>user called rbldns.
>
>Well here it is;
>
>===> Creating users and/or groups.
>Using existing group 'rbldns'.
>Creating user 'rbldns' with uid '153'
>pw: user 'rbldns' already exists.
>pkg-static: PRE-INSTALL script failed
>pkg-static: unknown user 'rbldns'
>....
>
>pw useradd rbldns
>pw: user'rbldns' already exists.
>
>9.3-RELEASE #0 r278921 amd64

Probably not related, but just in case:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205019

Anton