Docx reader ignores underline types other than single (double, thick, dotted, wave, words, …) #11988

import zipfile

runs = "".join(
    f'<w:r><w:rPr><w:u w:val="{v}"/></w:rPr><w:t xml:space="preserve">{v} </w:t></w:r>'
    for v in ["single", "double", "thick", "dotted", "dash", "wave", "words", "none"]
)
with zipfile.ZipFile("underline.docx", "w") as z:
    z.writestr(
        "[Content_Types].xml",
        '<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">'
        '<Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>'
        '<Override PartName="/word/document.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml"/>'
        "</Types>",
    )
    z.writestr(
        "_rels/.rels",
        '<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
        '<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="word/document.xml"/>'
        "</Relationships>",
    )
    z.writestr(
        "word/document.xml",
        '<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">'
        f"<w:body><w:p>{runs}</w:p></w:body></w:document>",
    )