Document non-compatibility of serialization
Document non-compatibility of serialization

linjunleo/lenskit,tajinder-txstate/lenskit,kluver/lenskit,martinlaz/lenskit,vijayvani/Lenskit,vaibhav345/lenskit,chrysalag/lenskit,amaliujia/lenskit,kluver/lenskit,amaliujia/lenskit,vaibhav345/lenskit,aglne/lenskit,aglne/lenskit,kluver/lenskit,kluver/lenskit,blankazucenalg/lenskit,kluver/lenskit,tajinder-txstate/lenskit,tajinder-txstate/lenskit,binweiwu/lenskit,martinlaz/lenskit,linjunleo/lenskit,vaibhav345/lenskit,chrysalag/lenskit,tajinder-txstate/lenskit,binweiwu/lenskit,vijayvani/Lenskit,blankazucenalg/lenskit,vaibhav345/lenskit