instance variable @_env not defined error

[tamadamas]

SSHKit::Runner::ExecuteError: Exception while executing on host: instance variable @_env not defined
~/.rvm/gems/ruby-1.9.3-p547@ges/gems/sshkit-1.5.1/lib/sshkit/backends/abstract.rb:88:in `remove_instance_variable'
~/.rvm/gems/ruby-1.9.3-p547@ges/gems/sshkit-1.5.1/lib/sshkit/backends/abstract.rb:88:in `with'

And it falls on next task

desc 'Create backup of the DB'
  task :backup do
    on roles(:db) do
      within release_path do
        with rails_env: fetch(:rails_env) do
          with 'BACKUP_PATH' => shared_path.join('backups') do
            execute :rake, 'db:backup'
          end
        end
      end
    end
  end

And task completes successfully and I can see correct dump.

[tamadamas]

following on this #43 I understand you don't support nested with, so I put it on one with