Steps to reproduce:

1. Create a mongocrypt_ctx_t for explicit encryption
2. Call mongocrypt_ctx_setopt_key_alt_name where key_alt_name is invalid BSON
3. Assert mongocrypt_ctx_setopt_key_alt_name fails
4. Create a new status (mongocrypt_status_new)
5. Call mongocrypt_ctx_status(ctx, status)
6. Assert that the status is not ok. This assert fails.

I believe the problem is this check in mongocrypt_ctx_status:

   if (!ctx->initialized) {
      return _mongocrypt_ctx_fail_w_msg (ctx, "ctx NULL or uninitialized");
   }