crash using render latex formula extension

[Leandro]

When editing this file (but not other files), when I try to add any "Latex formula" to the
drawing, Inkscape crashes.

In my machine it is fully reproducible. Just open the file, go to Extensions -> Render -> Latex formula.

Add anything to the field and Apply. The formula correctly appears in the graph, but a dialog
that forces closing Inkscape appears, all data is loss.

[su_v (suv-lp)]

Based on the Inkscape version (taken from the file, since it was not mentioned in the report):
> inkscape:version="0.48.3.1 r9886"
 and the id of <sodipodi:namedview> of the provided sample file:
> id="namedview3125"
this is another duplicate of a known regression in Inkscape 0.48.3.1:

Linking as duplicate to
Bug #944077 “inkscape crashed with SIGSEGV in Inkscape::Extension::Implementation::Script::effect()”
<https://bugs.launchpad.net/inkscape/+bug/944077>

Workaround for affected files:
<https://bugs.launchpad.net/ubuntu/+source/inkscape/+bug/944077/comments/11>