/* Eviction thread doing eviction. */
    if (is_eviction_thread)
        /*
         * Eviction threads do not need to pin anything in the cache. We have an exclusive lock for
         * the page being evicted so we are sure that the page will always be there while it is
         * being processed. Therefore, we use snapshot API that doesn't publish shared IDs to the
         * outside world.
         */
        __wt_txn_bump_snapshot(session);
    else if (use_snapshot_for_app_thread) {
        /*
         * If we couldn't make progress with the application thread's existing snapshot, save the
         * existing snapshot and refresh to acquire a new one. Then try eviction again. Once the
         * application threads are done with eviction, the application thread's snapshot is switched
         * back to the original.
         */
        if (F_ISSET(session->txn, WT_TXN_REFRESH_SNAPSHOT)) {
            WT_RET(__wt_txn_snapshot_save_and_refresh(session));
            is_application_thread_snapshot_refreshed = true;
            WT_STAT_CONN_INCR(session, application_evict_snapshot_refreshed);
        }

        LF_SET(WT_REC_APP_EVICTION_SNAPSHOT);
    } else if (!WT_SESSION_BTREE_SYNC(session))
        LF_SET(WT_REC_VISIBLE_ALL);