diff --git a/test/mod/test_objectstore.py b/test/mod/test_objectstore.py
index 6e04c6d8..c52c7d99 100644
--- a/test/mod/test_objectstore.py
+++ b/test/mod/test_objectstore.py
@@ -80,31 +80,6 @@ class TestObjectStore(unittest.TestCase):
             # there should be no temporary Objects dirs anymore
             self.assertEqual(len(os.listdir(object_store.tmp)), 0)
 
-    # pylint: disable=no-self-use
-    def test_duplicate(self):
-        with tempfile.TemporaryDirectory(dir="/var/tmp") as tmp:
-            object_store = objectstore.ObjectStore(tmp)
-            with object_store.new() as tree:
-                with tree.write() as path:
-                    p = Path(path, "A")
-                    p.touch()
-                object_store.commit(tree, "a")
-
-            with object_store.new() as tree:
-                with tree.write() as path:
-                    shutil.copy2(f"{object_store.refs}/a/A",
-                                 os.path.join(path, "A"))
-                object_store.commit(tree, "b")
-
-            assert os.path.exists(f"{object_store.refs}/a")
-            assert os.path.exists(f"{object_store.refs}/a/A")
-            assert os.path.exists(f"{object_store.refs}/b/A")
-
-            assert len(os.listdir(object_store.refs)) == 2
-            assert len(os.listdir(object_store.objects)) == 2
-            assert len(os.listdir(f"{object_store.refs}/a/")) == 1
-            assert len(os.listdir(f"{object_store.refs}/b/")) == 1
-
     # pylint: disable=no-self-use
     def test_object_base(self):
         # operate with a clean object store