F19 Alpha RC2 install failure

[Pasha R]

Hi,
I'm trying to install F19 Alpha RC2. As soon as anaconda starts it produces
a dialog saying "An unknown error has occured. This program encountered an
unknown error. You may report the bug below or quit the program".
Unfortunately, it is stuck at this dialog and does not allow me to press
"More info" or "Report Bug" (or Quit, but this is not really relevant), so
I can't provide any more information.
When I start it from console, it only prints
"(anaconda:2510): Gtk-CRITICAL **: gtk_tree_model_filter_get_path:
assertion `GTK_TREE_MODEL_FILTER (model)->priv->stamp == iter->stamp'
failed"

I tried installing with both network install CD image and from live CD -
with same result. Any ideas how to work around this problem?
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