update comments and changelog to specifically mention inplace updates…

… of parents

CHANGELOG.md

@@ -14,7 +14,7 @@
 
 #### Bug Fixes
 
-- Fixed a bug where an `Index` object created from a `Series`/`DataFrame` incorrectly updates the `Series`/`DataFrame`'s index name when it is not supposed to.
+- Fixed a bug where an `Index` object created from a `Series`/`DataFrame` incorrectly updates the `Series`/`DataFrame`'s index name after an inplace update has been applied to the original `Series`/`DataFrame`.
 
 
 ## 1.22.1 (2024-09-11)

src/snowflake/snowpark/modin/plugin/extensions/index.py

@@ -90,8 +90,8 @@ def __init__(self, parent: DataFrame | Series) -> None:
 
     def check_and_update_parent_qc_index_names(self, names: list) -> None:
         """
-        Update the Index and its parent's index names if the parent's current query compiler matches
-        the recorded query compiler (`_parent_qc`).
+        Update the Index and its parent's index names if the query compiler associated with the parent is
+        different from the original query compiler recorded, i.e., an inplace update has been applied to the parent.
         """
         if self._parent._query_compiler is self._parent_qc:
             new_query_compiler = self._parent_qc.set_index_names(names)
@@ -760,8 +760,9 @@ def name(self, value: Hashable) -> None:
         if not is_hashable(value):
             raise TypeError(f"{type(self).__name__}.name must be a hashable type")
         self._query_compiler = self._query_compiler.set_index_names([value])
-        # Update the name of the parent's index only if the parent's current query compiler
-        # matches the recorded query compiler.
+        # Update the name of the parent's index only if an inplace update is performed on
+        # the parent object, i.e., the parent's current query compiler matches the originally
+        # recorded query compiler.
         if self._parent is not None:
             self._parent.check_and_update_parent_qc_index_names([value])