From 5ad07e3e956586ad13a4c9eea5707511161e82f7 Mon Sep 17 00:00:00 2001
From: yann300 <yann.levreau@gmail.com>
Date: Wed, 18 Oct 2017 16:46:21 +0200
Subject: [PATCH] dont set callback if vmprovider already set up

---
 src/web3Provider/web3VmProvider.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/web3Provider/web3VmProvider.js b/src/web3Provider/web3VmProvider.js
index 9da1891894..c4317b750a 100644
--- a/src/web3Provider/web3VmProvider.js
+++ b/src/web3Provider/web3VmProvider.js
@@ -43,6 +43,7 @@ function web3VmProvider () {
 }
 
 web3VmProvider.prototype.setVM = function (vm) {
+  if (this.vm === vm) return
   var self = this
   this.vm = vm
   this.vm.on('step', function (data) {