ansible/ansible — pull request #6926 by ebrevdo (2014-04-09 20:42:50+00:00)
Title: [Fix for currently broken code] AWS VPC security group membership fix.

* facts now provides a list of existing vpc security group memberships
* adding a comma separated list of sg-* tags properly modifies membership (previously: threw an exception)

boto has been using this modified interface since I believe version 2.12.0.