inserted_to_update_chain = true;

    /* If the update was successful, add it to the in-memory log. */
    if (logged && modify_type != WT_UPDATE_RESERVE) {
        if (__wt_log_op(session))
            WT_ERR(__wt_txn_log_op(session, cbt));

        /*
         * Set the key in the transaction operation to be used in case this transaction is prepared
         * to retrieve the update corresponding to this operation.
         */
        WT_ERR(__wt_txn_op_set_key(session, key));
    }

    if (0) {
err:
        /* Remove the update from the current transaction, don't try to modify it on rollback. */
        if (logged)
            __wt_txn_unmodify(session);

        /* Free any allocated insert list object. */
        __wt_free(session, ins);

        cbt->ins = NULL;

        /* Discard any allocated update, unless we failed after linking it into page memory. */
        if (upd_arg == NULL && !inserted_to_update_chain)
            __wt_free(session, upd);

        /*
         * When prepending a list of updates to an update chain, we link them together; sever that
         * link so our callers list doesn't point into page memory.
         */
        if (last_upd != NULL)
            last_upd->next = NULL;
    }