Function move_branches

pub fn move_branches<'a>(
    effects: &Effects,
    git_run_info: &GitRunInfo,
    repo: &'a Repo,
    event_tx_id: EventTransactionId,
    rewritten_oids_map: &'a HashMap<NonZeroOid, MaybeZeroOid>,
) -> Result<()>

Given a list of rewritten OIDs, move the branches attached to those OIDs from their old commits to their new commits. Invoke the reference-transaction hook when done.