ensure no one tries to hash things before the random seed is found
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 5986fb8..2ec878f 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -7341,6 +7341,7 @@
     Py_UNICODE *p;
     long x;
 
+    assert(_Py_HashSecret_Initialized);
     if (self->hash != -1)
         return self->hash;
     len = Py_SIZE(self);