[O] Agenda items with date ranges

[SabreWolfy]

I remember that previously in Agenda view, entries such as:

,--------------------
| * A few days
| <2013-02-07 Thu>--<2013-02-14 Thu>
`--------------------

would appear with a (1/8), (2/8), etc. preceding the entry.

I added a similar entry today in org-mode version 7.9.2, and it appeared in the
agenda without the (1/8), etc. I have searched here, asked on IRC and looked for
a variable to control this feature, but have not been successful. Any help would
be appreciated. Thanks.