First Setup Failed for New User

[NN708]

After creating a new normal user, the First Setup failed to complete, resulting in the user being unusable.

Related error messages:

Jan 20 11:17:44 vanilla vanilla-first-s[439831]: (../src/vtepty.cc:810):void vte_pty_spawn_with_fds_async(VtePty*, const char*, const char* const*, const char* const*, const int*, int, const int*, int, GSpawnFlags, GSpawnChildSetupFunc, gpointer, GDestroyNotify, int, GCancellable*, GAsyncReadyCallback, gpointer): runtime check failed: ((spawn_flags & ignored_spawn_flags()) == 0)
Jan 20 11:17:46 vanilla vanilla-first-s[439831]: char* vte_terminal_get_text(VteTerminal*, VteSelectionFunc, gpointer, GArray*): assertion 'attributes == nullptr' failed