Hi,

With the latest release, --2d not work correctly.
Use the test case in http://lists.gnu.org/archive/html/emacs-orgmode/2013-02/msg00554.html

* TODO 1a
  SCHEDULED: <2018-02-24 Sat +1m --2d>
* TODO 2a
  SCHEDULED: <2018-03-24 Sat +1m --2d>
* TODO 1b
  SCHEDULED: <2018-02-25 Sun +1m --2d>
* TODO 2b
  SCHEDULED: <2018-03-25 Sun +1m --2d>
* TODO 1c
  SCHEDULED: <2018-02-26 Mon +1m --2d>
* TODO 2c
  SCHEDULED: <2018-03-26 Mon +1m --2d>

In the agenda of today ([2018-03-26 Mon]) shows 1a 2a 1b 2b 1c,
but 1a 2a 1b 1c are expected.

Please help fix it.

Thanks,
hhkg