clean CLIENT_TRACKING_CACHING flag when disabled caching

src/tracking.c

@@ -94,7 +94,7 @@ void disableTracking(client *c) {
         server.tracking_clients--;
         c->flags &= ~(CLIENT_TRACKING|CLIENT_TRACKING_BROKEN_REDIR|
                       CLIENT_TRACKING_BCAST|CLIENT_TRACKING_OPTIN|
-                      CLIENT_TRACKING_OPTOUT);
+                      CLIENT_TRACKING_OPTOUT|CLIENT_TRACKING_CACHING);
     }
 }