[Orgmode] Searching SCHEDULED/DEADLINE properties turns up spurious headings

[Hsiu-Khuern Tang]

I find that doing a tags search for SCHEDULED or DEADLINE turns up headings
that do not have any schedule or deadlines.

Using the example from http://article.gmane.org/gmane.emacs.orgmode/10274:

,----
| #+SEQ_TODO: NEXT WAITING | DONE
| #+STARTUP: overview
| 
| * DONE Test1
|    CLOSED: [2009-01-07 Wed 12:26]
| 
| * NEXT Test2
|    DEADLINE: <2009-01-28 Wed>
| 
| * Test3
`----

If I type

    C-c \ +DEADLINE<="<2009-01-28>" <RET>

all three headlines are selected!  I expected to match the second headline
only.

-- 
Best,
Hsiu-Khuern.