From 52171a12af41b326b07024735aad5b18e883a9b5 Mon Sep 17 00:00:00 2001
From: Dan Connolly <connolly@agoric.com>
Date: Tue, 29 Jun 2021 16:58:21 -0500
Subject: [PATCH] fix(swingset): don't perturb XS heap state when loading
 snapshot

---
 packages/SwingSet/src/controller.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/SwingSet/src/controller.js b/packages/SwingSet/src/controller.js
index 3489407c7b2..5ab8d4ede3e 100644
--- a/packages/SwingSet/src/controller.js
+++ b/packages/SwingSet/src/controller.js
@@ -93,7 +93,7 @@ export function makeStartXSnap(bundles, { snapStore, env, spawn }) {
       // console.log('startXSnap from', { snapshotHash });
       return snapStore.load(snapshotHash, async snapshot => {
         const xs = doXSnap({ snapshot, name, handleCommand, ...xsnapOpts });
-        await xs.evaluate('null'); // ensure that spawn is done
+        await xs.isReady();
         return xs;
       });
     }