[issue41762] Documentation job fails on CIs: duplicate token description of format_spec

[Dong-hee Na]

Dong-hee Na <donghee.na92 at gmail.com> added the comment:

>>> sphinx.__version__
'3.2.1

I can reproduce this issue consistantly on my local machine with this environment.

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nosy: +corona10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41762>
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