Please describe the problem:
I've brought this up before, and we've made some progress internally,
but now I'm stumped, and I'm not sure how to get better debugging.  What
happens, and this is very reproducible, is that any of the tools (e.g.
users-admin) hangs when clicking on Ok to apply changes.

Basically, if I add a user using users-admin, then click Ok, the window
grays, and sits there forever.  The debugging files under /var/cache
don't get updated once I click on Ok, and the user is not added.  I have
no idea what it's doing, but I have a feeling it has to do with the new
gst-auth.c code that performs I/O with the backend scripts.

Steps to reproduce:
1. Launch one of the tools (e.g. users-admin)
2. Make a change
3. Click Ok


Actual results:
The window grays out, and hangs indefintiely.  The changes do not get saved.

Expected results:
The window should disappear, and the changes should be saved.

Does this happen every time?
Yes.

Other information:
I'd be happy to provide any additional information if someone could help me with
enabling the right debugging.