error of unhashable type

Doing this

(pyreq/require-python 'sklearn.datasets)
(def newsgroups (sklearn.datasets/fetch_20newsgroups :subset "all" :remove (builtins/tuple [ "headers" "footers" "quotes"])))

and teh opening newsgroups i te ccider-inspector gives an error
Seems to happen only in cider-inspector ...

user> *e
;; => #error {
 :cause "TypeError: unhashable type: 'numpy.ndarray'\n"
 :via
 [{:type clojure.lang.ExceptionInfo
   :message nil
   :data #:clojure.error{:phase :print-eval-result}
   :at [clojure.main$repl$read_eval_print__9206 invoke "main.clj" 442]}
  {:type java.lang.Exception
   :message "TypeError: unhashable type: 'numpy.ndarray'\n"
   :at [libpython_clj2.python.ffi$check_error_throw invokeStatic "ffi.clj" 707]}]
 :trace
 [[libpython_clj2.python.ffi$check_error_throw invokeStatic "ffi.clj" 707]
  [libpython_clj2.python.ffi$check_error_throw invoke "ffi.clj" 705]
  [libpython_clj2.python.base$hash_code invokeStatic "base.clj" 180]
  [libpython_clj2.python.base$hash_code invokePrim "base.clj" -1]
  [libpython_clj2.python.bridge_as_jvm$generic_pyobject$reify__23789 hashCode "bridge_as_jvm.clj" 231]
  [clojure.lang.Util hasheq "Util.java" 173]
  [clojure.lang.Murmur3 hashOrdered "Murmur3.java" 107]
  [clojure.lang.ASeq hasheq "ASeq.java" 91]
  [clojure.lang.Util dohasheq "Util.java" 177]
  [clojure.lang.Util hasheq "Util.java" 168]
  [clojure.lang.PersistentHashMap hash "PersistentHashMap.java" 120]
  [clojure.lang.PersistentHashMap$TransientHashMap doAssoc "PersistentHashMap.java" 327]
  [clojure.lang.ATransientMap assoc "ATransientMap.java" 64]
  [clojure.lang.PersistentHashMap create "PersistentHashMap.java" 56]
  [clojure.lang.PersistentHashMap create "PersistentHashMap.java" 100]
  [clojure.lang.PersistentArrayMap createHT "PersistentArrayMap.java" 64]
  [clojure.lang.PersistentArrayMap assoc "PersistentArrayMap.java" 258]
  [clojure.lang.PersistentArrayMap assoc "PersistentArrayMap.java" 30]
  [clojure.lang.RT assoc "RT.java" 827]
  [clojure.core$assoc__5481 invokeStatic "core.clj" 193]
  [clojure.core$assoc__5481 invoke "core.clj" 192]
  [clojure.lang.Atom swap "Atom.java" 65]
  [clojure.core$swap_BANG_ invokeStatic "core.clj" 2371]
  [clojure.core$memoize$fn__6946 doInvoke "core.clj" 6388]
  [clojure.lang.RestFn invoke "RestFn.java" 421]
  [orchard.inspect$eval7170$fn__7175$fn__7188 invoke "inspect.clj" 660]
  [clojure.core$group_by$fn__8597 invoke "core.clj" 7224]
  [clojure.core.protocols$fn__8249 invokeStatic "protocols.clj" 168]
  [clojure.core.protocols$fn__8249 invoke "protocols.clj" 124]
  [clojure.core.protocols$fn__8204$G__8199__8213 invoke "protocols.clj" 19]
  [clojure.core.protocols$seq_reduce invokeStatic "protocols.clj" 31]
  [clojure.core.protocols$fn__8236 invokeStatic "protocols.clj" 75]
  [clojure.core.protocols$fn__8236 invoke "protocols.clj" 75]
  [clojure.core.protocols$fn__8178$G__8173__8191 invoke "protocols.clj" 13]
  [clojure.core$reduce invokeStatic "core.clj" 6886]
  [clojure.core$group_by invokeStatic "core.clj" 7214]
  [clojure.core$group_by invoke "core.clj" 7214]
  [orchard.inspect$eval7170$fn__7175 invoke "inspect.clj" 658]
  [clojure.lang.MultiFn invoke "MultiFn.java" 234]
  [orchard.inspect$inspect_render invokeStatic "inspect.clj" 792]

从 issue 中的复现开始，沿着报告的 stack 跟踪 libpython_clj2/python/base.clj 第 180 行、bridge_as_jvm.clj 第 231 行，以及 orchard/inspect.clj 第 658-660 行和第 792 行。确定为什么检查返回的对象会对 numpy.ndarray 进行哈希，然后验证 cider-inspector 能够在没有 TypeError 的情况下渲染该值。