I have a repo with 3 subfolders: A, B, C
I do a checkout with A/ and B/ in sparse_checkout.
Now I want to remove B from my sparse view. How?
If I just rm -r B, or git rm -r B, or git rm -r --cached B then git wants to commit that removal to the repo. But I want to keep B in the repo, just do not want to keep it in my working dir.