Fix warning message to show up on the LFW dataset webpages

[wei06159]

Based on comment here, this PR is trying to fix a bug that warning message does not show up on the LFW dataset webpages.

cc: @zy1git

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/vision/9474

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• Rolling out OSDC (ARC) runners on pull workflow for PyTorch trunk commits

⏳ 2 Pending, 2 Unrelated Failures

As of commit 01e44ac with merge base 601776d ():

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Tests / unittests-macos (3.10, macos-m1-stable) / macos-job (gh) (trunk failure)
  test/test_transforms_v2.py::TestErase::test_transform_image_correctness[4-cpu-dtype1-value-random]
• Tests / unittests-macos (3.14, macos-m1-stable) / macos-job (gh) (trunk failure)
  test/test_transforms_v2.py::TestErase::test_transform_image_correctness[4-cpu-dtype1-value-random]

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[wei06159]

Tested changes locally:

[github-actions]

Hey @zy1git!

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[zy1git]

@wei06159 Thanks for this PR!