Description of problem:
Just a simple request to replace an error by a warning:
            } else if ((e1 = event_occurred(prp, EVENT_WINDOW_CLOSED)) ||
                       event_occurred(prp, EVENT_BACKOFF_EXPIRED)) {
                /* this events - should not occur - log a warning and go to
sleep */
                slapi_log_err(SLAPI_LOG_ERR, repl_plugin_name,
                              "repl5_inc_run - %s: "
                              "Event %s should not occur in state %s; going to
sleep\n",
                              agmt_get_long_name(prp->agmt), e1 ?
event2name(EVENT_WINDOW_CLOSED) : event2name(EVENT_BACKOFF_EXPIRED),
state2name(current_state));
                protocol_sleep(prp, PR_INTERVAL_NO_TIMEOUT);
So, as it's just a warning, let's replace SLAPI_LOG_ERR by SLAPI_LOG_WARNING.
Same in windows inc protocol:
           } else if ((e1 = event_occurred(prp, EVENT_WINDOW_CLOSED)) ||
                       event_occurred(prp, EVENT_BACKOFF_EXPIRED)) {
                /* this events - should not occur - log a warning and go to
sleep */
                slapi_log_err(SLAPI_LOG_ERR, windows_repl_plugin_name,
                              "windows_inc_run - %s: "
                              "Event %s should not occur in state %s; going to
sleep\n",
                              agmt_get_long_name(prp->agmt),
                              e1 ? event2name(EVENT_WINDOW_CLOSED) :
event2name(EVENT_BACKOFF_EXPIRED),
                              state2name(current_state));
Version-Release number of selected component (if applicable): rhel-7.5