;; and hash table.
(while (setq datum (pop data))
(when (and (not (gnus-data-pseudo-p datum))
- (gnus-data-read-p datum))
+ (gnus-data-read-p datum)
+ (not (intern-soft (mail-header-id (gnus-data-header datum))
+ gnus-dup-hashtb)))
(intern (car (push (mail-header-id (gnus-data-header datum))
gnus-dup-list))
gnus-dup-hashtb))))