[O] tag search seems not to work.

[Uwe Brauer]

Hi

I am using GNU emacs 25.1.50 (compiled yesterday) and the latest org
version available in ELPA.

I really never used tag search as provided by the agenda. So today I
just copied the examples of
http://orgmode.org/worg/org-tutorials/advanced-searching.html



* TODO Buy clothes for wedding                    :wedding:important:errands:
 SCHEDULED: <2010-12-01 Wed>
 :PROPERTIES:
 :estimated-cost: 100
 :END:
 [2010-11-17 Wed 12:22]

 I need to look spiffy for the big day!

  - [ ] Suit
  - [ ] Tie
  - [ ] Shoes
  - [ ] Hat

 Possible stores to visit:
 
 | Store           | Location               | Miles away |
 |-----------------+------------------------+------------|
 | The Suit King   | 1000 E. Washington St. |        5.1 |
 | Mr. Haberdasher | 259 Western Rd.        |        7.2 |


Into an org file and run, as indicated 

C-m a
and then I searched for wedding,

However nothing was found, I expected, as in occur, a buffer showing me
all the tags matching my search criterion, but there was none.

What do I miss?

thanks

Uwe Brauer