Comment 3 for bug 1468396

Reproduced with Inkscape 0.91+devel r14212 on OS X 10.7.5 (full backtrace attached).

The trigger seems to be a partial definition of a path effect without any parameter attributes:

    <inkscape:path-effect
       effect="fillet-chamfer"
       id="path-effect35835" />

applied to a path in the group last added to the current layer in the drawing (id="path35831").

@jabiertxof - any chance you could take a look how this crash could be avoided? Could such documents be edited with the path effect in question disabled?