[BUG] list.sort_values returning incorrect results in some cases.

[ayushdg]

Describe the bug
Ran into a bug where sorting list values in a series led to a few rows producing incorrectly sorted results.

Steps/Code to reproduce bug

import cudf

df = cudf.read_parquet("listtype.parquet")
sorted_df = df.a.list.sort_values()
sorted_df.to_pandas().apply(lambda x: sorted(x) != x).sum()
3

Effectively 3 rows returned incorrect results.

More specifically these 3 indices: [79888, 122495, 163667] have incorrectly sorted results.

Repro Data: data.tgz

Expected behavior
Correctly sorted values

Environment overview (please complete the following information)

• Environment location: Bare-metal
• Method of cuDF install: pip release 24.06
  • If method of install is [Docker], provide docker pull & docker run commands used

Environment details
Please run and paste the output of the cudf/print_env.sh script here, to gather any other relevant environment details

Additional context
Add any other context about the problem here.

[Matt711]

I was able to reproduce in 24.10.