[Bug c++/93299] [9/10 Regression] ICE in tsubst_copy, at cp/pt.c:15779

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93299

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Seems to have started with g:e4511ca2e9ecdb51d41b64452398f8e2df575668.