I'm having a problem with the "Group By" functionality
in searches. I had a problem before, grouping on the
"Assigned To" field, but I've been
installing/reinstalling Roundup multiple times to learn
the ropes... and that problem has disappeared.

Now, however, when I group by a field I added,
"projecturl", a Link() field, it groups correctly on
all 3 of my url's except the FIRST one I entered (so
perhaps it's a problem related to the id # of the item?).

Entries for the first url are instead grouped under
"(no projecturl set)", at the bottom of this list (and
not interspersed with the others in order by activity).

In a previous tracker lifetime, the exact same thing
was happening with "Assigned To", but now it's only
happening (and reproducibly) with my custom
"projecturl" field.

I read somewhere about sorting+grouping on the same
field "breaking the index", however I don't think I've
ever done this, and am certainly not doing it with my
test searches now.

Tried:
- modifying the projecturl value then changing it back
- restarting roundup server
- using roundup-admin's "reindex" command (as a guess)
- making new searches from scratch
- small tantrum :-)
- testing on my other roundup server (however, they've
both been built following EXACTLY the same steps, and
both show the same errors).

The issues in my tracker have all been imported out of
a textfile via a script, but the URLs have been added
by-hand as a test-case.  (they link to our docs wiki)

Using Roundup 0.8.3, Windows XP, SQLite 1.1.6, Python 2.4.