Fetch tags before grepping

Author: benoittgt

Rakefile

@@ -63,13 +63,13 @@ task :update_docs, [:version, :branch, :website_path] do |t, args|
   abort "You must have ag installed to generate docs" if `which ag` == ""
   args.with_defaults(:website_path => "../rspec.github.io")
   each_project :except => (UnDocumentedProjects) do |project|
-    latest_release = `git tag | grep '^v\\\d.\\\d.\\\d$' | grep v#{args[:version]} | tail -1`
+    latest_release = `git fetch --tags && git tag | grep '^v\\\d.\\\d.\\\d$' | grep v#{args[:version]} | tail -1`
 
     if latest_release.empty?
       next "No release found for #{args[:version]} in #{`pwd`}"
     end
 
-    `git fetch --tags && git checkout #{latest_release}`
+    `git checkout #{latest_release}`
     doc_destination_path = "#{args[:website_path]}/source/documentation/#{args[:version]}/#{project}/"
     cmd = "bundle install && \
            RUBYOPT='-I#{args[:website_path]}/lib' bundle exec yard \