Changes in pycairo implies segfaults

In the pycairo's ChangeLog, we see this :

2007-12-122
       [...]
 * cairo/pycairo-context.c (pycairo_new): Pass 'type' as second arg to
 PycairoContext_FromContext(). This fixes the problem where Python
 subclasses of cairo.Context were not working properly.
 (PycairoContext_FromContext): Remove the support for arg #2 to be NULL,
 - its not a good 'default' since it caused the subclassing problem
 fixed above.

But, in pygoocanvas there are calls to the function PycairoContext_FromContext with NULL arg#2. This leads pygoocanvas to segfault now.

I'm a little surprised not to see someone else talking about it. I hope I don't do something bad... :-)

Any idea ?

Thanks
David.