pub fn diff_named_commit_ids<'a, 'b, K: Ord>(
ids1: impl IntoIterator<Item = (K, &'a CommitId)>,
ids2: impl IntoIterator<Item = (K, &'b CommitId)>,
) -> impl Iterator<Item = (K, (Option<&'a CommitId>, Option<&'b CommitId>))>Expand description
Compares ids1 and ids2 commit ids, yields entry if they differ.
ids1 and ids2 must be sorted by K.