Freeciv

Same is true with all icons drawn with picture_set_from_surface(), and I'm sure it used to work -> assuming bug to be in gtk. It seems that gtk_picture_set_paintable() (and its wrapper gtk_picture_set_pixbuf()) do not work if the new paintable is of the same size as the current. I've got icons to refresh by a workaround that I first set a dummy 1x1 drawable, and only then the real one.