[Bug c++/103186] redefinition of template symbol error with strange error diagnostic

[dl.soluz at gmx dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186

--- Comment #2 from dennis luehring <dl.soluz at gmx dot net> ---
Created attachment 51766
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51766&action=edit
s-file

output of "gcc -Wall -Wextra -std=c++17 test.cpp -DTEST=1 -save-temps"