From aaca20343a5a4dae1bb436b1534a1074a597b36a Mon Sep 17 00:00:00 2001
From: juanbc <jbcabral@unc.edu.ar>
Date: Sat, 23 Sep 2023 18:36:31 -0300
Subject: [PATCH] more inmutability now in _ArrayAC

---
 skcriteria/core/data.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/skcriteria/core/data.py b/skcriteria/core/data.py
index 995172d..ff8fbef 100644
--- a/skcriteria/core/data.py
+++ b/skcriteria/core/data.py
@@ -62,7 +62,7 @@ def __new__(cls, input_array, skc_slicer):
     def __getitem__(self, k):
         try:
             if k in self:
-                return self._skc_slicer(k)
+                return self._skc_slicer(k).copy()
             return super().__getitem__(k)
         except IndexError:
             raise IndexError(k)