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diff --git a/packages/debbugs/debbugs-gnu.el b/packages/debbugs/debbugs-gnu.el
index 0136831dfa350d3a2f9a2505cf557aa07a6a8fc1..c3f0c15379cb3c9332a428763192690c42290c8a 100644 (file)
--- a/packages/debbugs/debbugs-gnu.el
+++ b/packages/debbugs/debbugs-gnu.el
@@ -1150,6 +1150,9 @@ MERGED is the list of bugs merged with this one."
          (debbugs-read-emacs-bug-with-rmail id status (if (listp merged)
                                                           merged
                                                         (list merged)))
+       (require 'gnus-dup)
+       (setq gnus-suppress-duplicates t
+             gnus-save-duplicate-list t)
        ;; Use Gnus.
        (gnus-read-ephemeral-emacs-bug-group
         (cons id (if (listp merged)