dtbuchholz

fn process_attestation(...) {
    ...
    // Update epoch participation flags
    // @dev deviate from the order of the spec to avoid immutable borrow after mutable borrow
    let attesting_indices =
        get_attesting_indices(state, data, &attestation.aggregation_bits, context)?;

    // @dev Create immutable reference to `{current_or_previous}_epoch_participation`
    let epoch_participation = if is_current {
        &state.current_epoch_participation