Fix other usages of copy

Author: mroeschke

pandas/core/internals/managers.py

@@ -2184,7 +2184,7 @@ def setitem_inplace(self, indexer, value) -> None:
         the dtype.
         """
         if not self._has_no_reference(0):
-            self.blocks = (self._block.copy(),)
+            self.blocks = (self._block.copy(deep=True),)
             self._reset_cache()
 
         arr = self.array

pandas/core/series.py

@@ -500,7 +500,7 @@ def __init__(
             if dtype is not None:
                 data = data.astype(dtype=dtype)
             elif copy:
-                data = data.copy()
+                data = data.copy(deep=True)
         else:
             data = sanitize_array(data, index, dtype, copy)
             data = SingleBlockManager.from_array(data, index, refs=refs)