From 3f9fb2ef03a78bc9177a52d4629a5e80e6e42b2e Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Mon, 6 Jan 2014 09:27:26 -0800
Subject: [PATCH] core: reset the specification lookup when isolating gems

---
 lib/vagrant/bundler.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/vagrant/bundler.rb b/lib/vagrant/bundler.rb
index 184064cf3..28810d48c 100644
--- a/lib/vagrant/bundler.rb
+++ b/lib/vagrant/bundler.rb
@@ -161,7 +161,10 @@ module Vagrant
       # Clear paths so that it reads the new GEM_HOME setting
       Gem.paths = ENV
 
-      # Set a custom configuration to avoid loading ~/.gemrc loads and
+      # Reset the all specs override that Bundler does
+      old_all = Gem::Specification._all
+      Gem::Specification.all = nil
+
       # /etc/gemrc and so on.
       old_config = nil
       begin
@@ -185,6 +188,7 @@ module Vagrant
 
       Gem.configuration = old_config
       Gem.paths = ENV
+      Gem::Specification.all = old_all
     end
 
     # This is pretty hacky but it is a custom implementation of