netfilter buglog - Jun 2018 - [Bug 1260] New: If set with "localhost", a new rule is duplicated

https://bugzilla.netfilter.org/show_bug.cgi?id=1260

            Bug ID: 1260
           Summary: If set with "localhost", a new rule is duplicated
           Product: iptables
           Version: 1.6.x
          Hardware: x86_64
                OS: Debian GNU/Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: iptables
          Assignee: netfilter-buglog at lists.netfilter.org
          Reporter: fredgib at free.fr

If I append a new rule (in any chain of the filter table) with
"localhost" as
the source or the destination, then the rule will be duplicated: the command
"iptables -L" shows it twice, and it is possible to replace/delete one
of the
two instances without altering the other with for example "iptables
-D".

The command "iptables -L -n" shows both instances with
"127.0.0.1" instead of
"localhost".

If I use "127.0.0.1" instead of "localhost" while I append
the rule, the rule
is NOT duplicated and appears normally with "iptables -L", displaying
"localhost" if I don't use "-n" and displaying
"127.0.0.1" if I do.

Cheers!

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