use the right shapes when computing morph shapes
use the right shapes when computing morph shapes

This patch makes morph shapes work again. They were broken since 0.5.2 or so,
but apparently noone noticed.

mltframework/swfdec,freedesktop-unofficial-mirror/swfdec__swfdec,freedesktop-unofficial-mirror/swfdec__swfdec,mltframework/swfdec,freedesktop-unofficial-mirror/swfdec__swfdec