Description of problem:
Package python-ftfy fails to build from source in Fedora Rawhide.

Version-Release number of selected component (if applicable):
6.1.1-3.fc40

Steps to Reproduce:
koji build --scratch f41 python-ftfy-6.1.1-3.fc40.src.rpm

Additional info:
This package is tracked by Koschei. See:
https://koschei.fedoraproject.org/package/python-ftfy

Reproducible: Always

Actual Results:  
=================================== FAILURES ===================================
__________________ [doctest] ftfy.formatting.monospaced_width __________________
041 This can be useful for formatting text that may contain non-spacing
042 characters, or CJK characters that take up two character cells.
043 
044 Returns -1 if the string contains a non-printable or control character.
045 
046 >>> monospaced_width('ã¡ã‚ƒã¶å°è¿”ã—')
047 12
048 >>> len('ã¡ã‚ƒã¶å°è¿”ã—')
049 6
050 >>> monospaced_width('owl\N{SOFT HYPHEN}flavored')
Expected:
    12
Got:
    11

/builddir/build/BUILD/python-ftfy-6.1.1/ftfy/formatting.py:50: DocTestFailure