Adding new branch

When a new branch has been added into SVN repo, a corresponding Git branch must be created and set up for tracking.

• in the SVN history, find the "version" commit that precedes branch creation, obtain its hash;
• in the Git repo, create a file in the .git/refs/remotes/branches with the name of the branch (say 3.3), and write the commit hash there;
• in .git/config, add the new branch;
• create a git branch for tracking: git branch --track 3.3 refs/remotes/branches/3.3;
• erase git-svn cache: rm -rf .git/svn;
• git svn fetch (will take awhile).