From 8c71640da694db9340b1548208472d5ddc2a642b Mon Sep 17 00:00:00 2001
From: Zaid Abdulla <zaid@genieacs.com>
Date: Mon, 28 Jan 2019 18:38:40 -0800
Subject: [PATCH] Fix VersionedMap deserialization issue

Resolves #334.
---
 lib/versioned-map.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/versioned-map.js b/lib/versioned-map.js
index 30853cd..e93ff14 100644
--- a/lib/versioned-map.js
+++ b/lib/versioned-map.js
@@ -127,15 +127,15 @@ class VersionedMap {
 
   setRevisions(key, revisionsObj) {
     const del = revisionsObj.delete || 0;
-    const maxRev = Object.keys(revisionsObj).reduce(
-      (acc, cur) => (+cur > acc ? +cur : acc),
-      0
+    const mutations = Object.keys(revisionsObj).reduce(
+      (acc, cur) => (cur === "delete" ? acc : acc | (1 << +cur)),
+      del
     );
 
     const revisions = [];
 
     let prev = NONEXISTENT;
-    for (let i = 0; i <= maxRev; ++i) {
+    for (let i = 0; mutations >> i; ++i) {
       let v = prev;
       if (del & (1 << i)) v = NONEXISTENT;
       else if (i in revisionsObj) v = revisionsObj[i];