I want to copy changes & history from repo A to repo B.
So I went through http://gbayer.com/development/moving-files-from-one-git-repository-to-another-preserving-history/ tutorial.
However I am stuck at git filter-branch command, as it told me:
Cannot rewrite branches: You have unstaged changes.
When I do git status, there are changes but I don't want to get latest from repo A. I want somewhere around a date and then copy it over to repo B.
How can I possibly do that?