Folks I'm getting a lot of this simonpj@MSRC-3645512:~/code/HEAD-3$ git status On branch wip/T19569 Your branch is up to date with 'origin/wip/T19569'. Changes not staged for commit: (use "git add <file>..." to update what will be committed) (use "git restore <file>..." to discard changes in working directory) (commit or discard the untracked or modified content in submodules) modified: libraries/unix (modified content) Untracked files: (use "git add <file>..." to include in what will be committed) libraries/base/config.sub libraries/ghc-bignum/config.sub What has changed in unix? Answer: simonpj@MSRC-3645512:~/code/HEAD-3$ cd libraries/unix simonpj@MSRC-3645512:~/code/HEAD-3/libraries/unix$ git status HEAD detached at 21437f2 Changes not staged for commit: (use "git add <file>..." to update what will be committed) (use "git restore <file>..." to discard changes in working directory) modified: config.sub Ugh. Why is config.sub modified if it's a repo file? And should I ignore the untracked base/config.sub and ghc-bignum? What am I doing wrong? Thanks Simon