Gerrit emails

[Eli Zaretskii]

Gerrit-generated emails I get from the list have the addressee headers
set as follows:

  From: "Christian Biesinger (Code Review)" <gerrit@gnutoolchain-gerrit.osci.io>
  To: Christian Biesinger <cbiesinger@google.com>,	gdb-patches@sourceware.org
  Cc: Tom de Vries <tdevries@suse.de>,	Simon Marchi <simon.marchi@polymtl.ca>
  Reply-To: cbiesinger@google.com, simon.marchi@polymtl.ca, tdevries@suse.de, cbiesinger@google.com, gdb-patches@sourceware.org

(It could be that some of these are generated by the list server, not
by Gerrit itself.)

This causes Emacs's Rmail to produce duplicate addresses in the reply
email:

  To: cbiesinger@google.com, simon.marchi@polymtl.ca, tdevries@suse.de, cbiesinger@google.com, gdb-patches@sourceware.org
  Cc: cbiesinger@google.com,	gdb-patches@sourceware.org, tdevries@suse.de,	simon.marchi@polymtl.ca

And that forces me to manually edit the email headers of the response
before sending, which is a nuisance.

Can this be fixed not to produce duplicate addresses, please?

TIA