From ccf4683558928925ec2f637be05916e8f1a2e91e Mon Sep 17 00:00:00 2001
From: Marcel Klehr <mklehr@gmx.net>
Date: Thu, 10 Oct 2013 16:38:16 +0200
Subject: [PATCH] Easysync: Throw an error if an unknown attrib is referneced

---
 src/static/js/Changeset.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/static/js/Changeset.js b/src/static/js/Changeset.js
index f9270385..5841dadd 100644
--- a/src/static/js/Changeset.js
+++ b/src/static/js/Changeset.js
@@ -1504,6 +1504,7 @@ exports.moveOpsToNewPool = function (cs, oldPool, newPool) {
   return upToDollar.replace(/\*([0-9a-z]+)/g, function (_, a) {
     var oldNum = exports.parseNum(a);
     var pair = oldPool.getAttrib(oldNum);
+    if(!pair) exports.error('Can\'t copy unknown attrib (reference attrib string to non-existant pool entry). Inconsistent attrib state!');
     var newNum = newPool.putAttrib(pair);
     return '*' + exports.numToString(newNum);
   }) + fromDollar;