[Bug c++/115987] False "possibly dangling reference" false positive when having an extra template parameter

[durosu at yahoo dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115987

--- Comment #7 from Dan Urosu <durosu at yahoo dot com> ---
Why does not warn for unwarp_1?
The mere addition of an unused template parameter triggers this warning.