Poor PDF Processing Results on the Official Python Documentation

### Bug
Docling version 2.48.0 fails to properly extract content from official Python documentation PDFs, regardless of OCR settings.

### Steps to reproduce
pipeline_options = PdfPipelineOptions(
do_ocr=True,
)

converter = DocumentConverter(
format_options={
InputFormat.PDF: PdfFormatOption(pipeline_options=pipeline_options)
}
)

Then I used
result = converter.convert(str(pdf_file))
markdown = result.document.export_to_markdown()

### Docling version
2.48.0

### Python version
3.13

### Document source
Official Python 3.13 documentation PDFs from https://docs.python.org/3/download.html

I have attached an excel with comparison with the results.
[Docling python doc comparison.xlsx](https://github.com/user-attachments/files/22044414/Docling.python.doc.comparison.xlsx)