https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94996
--- Comment #1 from hotwatermorning at gmail dot com --- Note: The expected behavior is that the associated thread is stopped and joined at `th = std::jthread();` and the following assertion passes, but the current implementation aborts at `th = std::jthread();` because the internal _M_thread data-member is move-assigned while joinable() == true.
