[cairo] Corrupted image surface in pycairo 1.0.2

[Sebastian Koppehel]

Steven Chaplin wrote:

> I believe cairo 1.0.2 (and pycairo 1.0.2) creates an ImageSurface in an
> undefined state and you DO need to explicitly clear the surface. The
> behaviour was changed in cairo 1.2.0 (and pycairo 1.2.0) which now
> creates an ImageSurface and clears it.

Steven, Vladimir, many thanks. This is what I get for using the
documentation on the website. The clearing behaviour was indeed
introduced only on 14 April:

http://gitweb.freedesktop.org/?p=cairo;a=commitdiff;h=0e44e798b5f6fd58cc586e40f926d363cd8fff50

 - Sebastian