Re: Bug#818237: Re: vagrant-libvirt: undefined method `group_by' for nil:NilClass (NoMethodError)

[Christian Hofstaedtler <zeha@debian.org>]

This might be a suitable patch for vagrant, but I clearly don't
understand enough of what vagrant is doing there in the first place.
(The patch makes vagrant plugin install vagrant-libvirt work for
me, but that's the only thing I tried.)

---
 lib/vagrant/bundler.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/vagrant/bundler.rb b/lib/vagrant/bundler.rb
index 5a5c185..c4a3837 100644
--- a/lib/vagrant/bundler.rb
+++ b/lib/vagrant/bundler.rb
@@ -272,7 +272,6 @@ module Vagrant
 
       # 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
@@ -286,6 +285,8 @@ module Vagrant
       end
       Gem.configuration = NilGemConfig.new
 
+      Gem::Specification.reset
+
       # Use a silent UI so that we have no output
       Gem::DefaultUserInteraction.use_ui(Gem::SilentUI.new) do
         return yield

-- 
2.7.0