What does the glorious future hold for sucking the life out of
existing centralized saas and then breathing it into free
alternatives? Okay, specifically, how do we handle this use case:


-  Hey, I just heard about MediaGoblin, and I'd like to try it out,
   but all my stuff is in Flickr. What's the easiest way to move
   things over?

I unwittingly triggered an extra MongoDB version dependency because
I was running MongoDB v1.2.2 on omgmg (bad Caleb, bad!). The
symptom is as follows:


-  media items show up on root.html, but the link to
   /u/this-is-my-slug gave 404 errors. However, the
   /u/objectid\_string link worked. That is, until later Elrond found
   one for which the slug link 404'ed and the objectID link 500'ed. I
   don't have the traceback.

Chris investigated, figured out the problem was probably a MongoDB
version issue, cleaned up the mess by upgrading MongoDB, and
narrowed the issue down to older MongoDBs not being able to drop
indexes...or something like that. The exact cause remains unknown,
but what is known is that there is another MongoDB version
dependency lurking in the inky shadows somewhere between v1.2.2 and
v1.8.3.

If the dependency is met by v1.3 then the docs are correct.
Otherwise the docs are incorrect.

We could narrow down the version dependency in two ways:


1. Actively by stepping through MongoDB releases on one machine
   from v1.2.2 until the ambiguously defined issue is resolved.
2. Passively by keeping an eye out for this error in IRC, and
   asking users to report their MongoDB versions here before
   updating.

I'm happy to do `#1 </issues/1>`_ using the old omgmg envball and
Chris's 404 test (below). Meanwhile please consider #2.

test -
`http://omgmg.dyndns.org:6543/u/isylja/m/spielkind-2/ <http://omgmg.dyndns.org:6543/u/isylja/m/spielkind-2/>`_
gives 404 error. First MongoDB version without the 404 error meets
the "dependency." That's the best I can think of for now.

A few tickets are blocking on being able to rip test data into the
database, and some giant put me on his shoulders and then I saw the
promised land of test fixtures. We need to support test fixtures.