Comment 15 for bug 414413

Encountered a crash when embedding the 15th image.
Some weird pointer issue seems to be present.
The best way to prevent errors in the long term would be the conversion of the relevant code in sp-image.cpp to a c++ class. I fail to do this because of the mechanism used elsewhere in the program to check which object type one is editing (sp_image_get_type via G_TYPE_CHECK_CLASS_TYPE).