[Bug c++/92948] internal compiler error: in tsubst_copy, at cp/pt.c:15788

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92948

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed on trunk so far, will backport to 9 sometime soon.