2010-11-26 Lars Magne Ingebrigtsen <larsi@gnus.org>
+ * gnus-sum.el (gnus-summary-push-marks-to-backend): Use 'set instead of
+ 'add and 'delete to set backend marks.
+
* nnmaildir.el (nnmaildir-request-set-mark): Be explicit about 'set.
* nnheader.el (nnheader-update-marks-actions): Refactor out.