Logcheck devel - Aug 2006 - Bug#383243: deluser error message on purge

Package: logcheck
Version: 1.2.47
Severity: minor

$ sudo dpkg --purge logcheck
(Reading database ... 157183 files and directories currently installed.)
Removing logcheck ...
Purging configuration files for logcheck ...
/usr/sbin/deluser: The user `logcheck' does not exist.

The user did exist before that, as it was properly created on installation.
I'm not sure why it would complain like that, but it's weird.