Error: "markflow.exceptions.ReformatInconsistentException: Reformat of reformatted code results in different text."

With a relatively simple text file I get an exception with markflow.

This is the input:
```
The history of carbon capture took a new turn with the Sleipner project in Norway. The
Nordic country was among the first to implement a carbon tax in 1991. It gave companies
a financial incentive to reduce their carbon dioxide emissions.
```

When I use markflow with a line length of 78, it breaks:
```
markflow --line-length 78 ccs.md
File "/home/hanno/.local/bin/markflow", line 8, in
sys.exit(__main__())
^^^^^^^^^^
File "/home/hanno/.local/lib/python3.11/site-packages/markflow/__main__.py", line 382, in __main__
exit(main(sys.argv[1:]))
^^^^^^^^^^^^^^^^^^
File "/home/hanno/.local/lib/python3.11/site-packages/markflow/__main__.py", line 377, in main
return _reformat_files(args)
^^^^^^^^^^^^^^^^^^^^^
File "/home/hanno/.local/lib/python3.11/site-packages/markflow/__main__.py", line 282, in _reformat_files
new_contents = reformat_markdown_text(old_contents, args.line_length)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/hanno/.local/lib/python3.11/site-packages/markflow/reformat_markdown.py", line 97, in reformat_markdown_text
raise ReformatInconsistentException(
markflow.exceptions.ReformatInconsistentException: Reformat of reformatted code results in different text. Please open a bug report or email jholland@duosecurity.com. (file: ccs.md)
```

Reproduce the failure with the shown ccs.md text and `markflow --line-length 78 ccs.md`. Start in markflow/reformat_markdown.py at reformat_markdown_text and its consistency check, with markflow/__main__.py showing the CLI path. Done means this input reformats without ReformatInconsistentException and the result remains stable when reformatted again.

Written by the indexing model from the issue text.