better fix for the reorder memleak
better fix for the reorder memleak

we could try reordering during image close, and after the arrays had
been freed

jcupitt/libvips,lovell/libvips,jcupitt/libvips,lovell/libvips,jcupitt/libvips,jcupitt/libvips,lovell/libvips,lovell/libvips