Column name wrongly contains data
See https://huggingface.co/datasets/ankumar/benchmark_questions_gpt-4

In the croissant spec: https://huggingface.co/api/datasets/ankumar/benchmark_questions_gpt-4/croissant

<img width="1916" alt="Capture d’écran 2024-05-06 à 14 02 07" src="https://github.com/huggingface/dataset-viewer/assets/1676121/de3aae1e-9f37-4ae3-8e77-83b3a2b717cb">

Note also that the dataset viewer is broken on this dataset:

<img width="683" alt="Capture d’écran 2024-05-06 à 14 04 59" src="https://github.com/huggingface/dataset-viewer/assets/1676121/6dfe74b5-a481-4cd4-b827-548f781dd924">

Reported first at https://github.com/huggingface/moon-landing/issues/9887

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The issue surely comes from datasets, since we can see the same error in the `/info` endpoint: https://datasets-server.huggingface.co/info?dataset=ankumar/benchmark_questions_gpt-4

<img width="1752" alt="Capture d’écran 2024-05-06 à 14 07 36" src="https://github.com/huggingface/dataset-viewer/assets/1676121/1796e64a-75c3-4f20-9e42-f03caf8e9fee">

Is it linked to https://github.com/huggingface/datasets/pull/6871 @albertvillanova @lhoestq?

Column name wrongly contains data: See https://huggingface.co/datasets/ankumar/benchmark_questions_gpt-4

In the croissant spec: https://huggingface.co/api/datasets/ankumar/benchmark_questions_gpt-4/croissant

<img width="1916" alt="Capture d’écran 2024-05-06 à 14 02 07" src="https://github.com/huggingface/dataset-viewer/assets/1676121/de3aae1e-9f37-4ae3-8e77-83b3a2b717cb">

Note also that the dataset viewer is broken on this dataset:

<img width="683" alt="Capture d’écran 2024-05-06 à 14 04 59" src="https://github.com/huggingface/dataset-viewer/assets/1676121/6dfe74b5-a481-4cd4-b827-548f781dd924">

Reported first at https://github.com/huggingface/moon-landing/issues/9887

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The issue surely comes from datasets, since we can see the same error in the `/info` endpoint: https://datasets-server.huggingface.co/info?dataset=ankumar/benchmark_questions_gpt-4

<img width="1752" alt="Capture d’écran 2024-05-06 à 14 07 36" src="https://github.com/huggingface/dataset-viewer/assets/1676121/1796e64a-75c3-4f20-9e42-f03caf8e9fee">

Is it linked to https://github.com/huggingface/datasets/pull/6871 @albertvillanova @lhoestq?
