Cannot replace an element with its contents

[jemrobinson]

Crash when parsing https://www.centerforsecuritypolicy.org/1994/07/25/hardy-perennial-tim-weiner-senate-allies-conjure-up-false-charges-again-in-hopes-of-making-more-cuts-in-sdi-2/

Traceback (most recent call last):
  File "populate_article_db.py", line 71, in <module>
    main()
  File "populate_article_db.py", line 67, in main
    use_local=args.local)
  File "/Users/jrobinson/Projects/misinformation/misinformation-crawler/misinformation/warc/warc_parser.py", line 131, in process_webpages
    article = extract_article(response, config, entry, self.content_digests, self.node_indexes)
  File "/Users/jrobinson/Projects/misinformation/misinformation-crawler/misinformation/extractors/extract_article.py", line 42, in extract_article
    default_readability_article = simple_json_from_html_string(page_html, content_digests, node_indexes, use_readability=False)
  File "/Users/jrobinson/Projects/misinformation/misinformation-crawler/ReadabiliPy/readabilipy/simple_json.py", line 34, in simple_json_from_html_string
    "content": str(simple_tree_from_html_string(html))
  File "/Users/jrobinson/Projects/misinformation/misinformation-crawler/ReadabiliPy/readabilipy/simple_tree.py", line 27, in simple_tree_from_html_string
    process_special_elements(soup)
  File "/Users/jrobinson/Projects/misinformation/misinformation-crawler/ReadabiliPy/readabilipy/simplifiers/html.py", line 123, in process_special_elements
    element.unwrap()
  File "/Users/jrobinson/.pyenv/versions/misinformation/lib/python3.7/site-packages/bs4/element.py", line 307, in unwrap
    "Cannot replace an element with its contents when that"
ValueError: Cannot replace an element with its contents when thatelement is not part of a tree.