nippy freeze / thaw of a certain dataset corrupts it

[behrica]

I have a certain dataset ,
which gets corrupted via a freeze / thaw operaton using nippy

Reproducible with this code:

(require '[taoensso.nippy :as nippy])
(require '[tech.v3.dataset :as tds])
(require '[tablecloth.api :as tc])
(def df
  (->
   (tds/->dataset "https://github.com/behrica/kaggleHP/raw/main/train.csv.gz" {:key-fn keyword})
   
   ))
;; working
(tds/rows df)

(nippy/freeze-to-file "/tmp/df.nippy" df)
(def df-thawed (nippy/thaw-from-file "/tmp/df.nippy"))
;;  fails
(tds/rows df-thawed)

 Caused by java.lang.ClassCastException
   class [D cannot be cast to class [Ljava.lang.Object; ([D and
   [Ljava.lang.Object; are in module java.base of loader 'bootstrap')

          array_buffer.clj:  334  tech.v3.datatype.array-buffer/array-buffer/reify
               Buffer.java:   55  tech.v3.datatype.Buffer/get
               readers.clj:   97  tech.v3.dataset.readers/value-reader/reify/reify
               Buffer.java:   55  tech.v3.datatype.Buffer/get
           FastStruct.java:  149  tech.v3.dataset.FastStruct$1/next
                   RT.java:  523  clojure.lang.RT$4/invoke
              LazySeq.java:   42  clojure.lang.LazySeq/sval
              LazySeq.java:   51  clojure.lang.LazySeq/seq

[cnuernber]

Just for anyone reading this the issue was in dataset->data which the nippy pathway uses to simplify the dataset into base clojure datastructures and primitive arrays.

[cnuernber]

Release 6.065 fixes this issue.