[wp-testers] Strange happenings when creating a "child page"

[WP Testers List]

Morning/afternoon all

Could anyone advise me if this is a bug?  I remember a lot of work being put
into "canonical" URLs back when 2.3 was being developed, so I don't know
whether this is a "feature" or a bug - currently, my moneys on bug.

I'm trying to assign a "child" page to a parent.  It relates to a festival I
go to every year, so I want the structure to be like this:

   http://mou.me.uk/glastonbury/2007/
      and
   http://mou.me.uk/glastonbury/2008/


Unfortunately, WordPress doesn't seem to like this.  In fact, if I try to
visit either of these pages, it displays the content of
http://mou.me.uk/glastonbury/   (ie, the parent).
I tried renaming the page slug, so that the URL was:

   http://mou.me.uk/glastonbury/glastonbury2007/

And this works!  The only problem is, its not what I want.
So it seems to be using a 4 digit number as a slug thats causing it to
break.  I tried a few variations to see what was going on - bizarrely,
using  http://mou.me.uk/glastonbury/2007/a/  threw me back to a post I'd
written in 2007, unrelated to "Glastonbury".


Does anyone know whats going on?  Is this something I should be logging on
Trac?

Short of physically creating a "glastonbury" folder in my root and using the
template system, I can't see a way round this.


Cheers
Chris

p.s. Currently on WP 2.5.1