[Bug c++/121702] [modules] ICE when exporting a using namespace referring to an imported namespace

[shyeyian at petalmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121702

--- Comment #10 from shyeyian <shyeyian at petalmail dot com> ---
Thank you for your perfect fix — the solution works great!