[Bug c++/83591] -Wduplicated-branches fires in system headers in template instantiation

[twan at vitestro dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83591

twan at vitestro dot com changed:

           What    |Removed                     |Added
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                 CC|                            |twan at vitestro dot com

--- Comment #5 from twan at vitestro dot com ---
I ran into this same issue on gcc 7.2.0. 

This issue seems to be resolved in gcc 9.3.0.