Thank you for the link. I read through their justifications and I think using a git-submodule solves their problems of polluting the main project history and pe

Thank you for the link. I read through their justifications and I think using a git-submodule solves their problems of polluting the main project history and permissions issue. Using directories for mutually-exclusive state grouping (e.g. "closed"/"open"/"new") solves the directory problem.