fix test_computed_var assertion

Author: masenf

tests/integration/test_computed_vars.py

@@ -74,7 +74,7 @@ def increment(self):
         def mark_dirty(self):
             self._mark_dirty()
 
-    assert State.backend_vars == {}
+    assert State.backend_vars == {"_reflex_internal_links": {}}
 
     def index() -> rx.Component:
         return rx.center(