My team currently is using TFS 2010 for source control, builds and project management. We are moving to Git for source control, Cruise for builds, and Redmine for project management. We are using Git-Tfs right now to integrate our source control with TFS, and cruise is a pretty trivial setup, my question is about project management migration.
Are there any processes or tools to migrate the issues, bugs, tasks, and user stories from TFS to Redmine? Has anyone done this before?