Do not shun servers with max_replication_lag = 0 #4018 #4077
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If max_replication_lag is 0 and mysql-monitor_replication_lag_group_by_host='true', a replica was incorrectly shunned because of replication lag
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retest this please |
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If max_replication_lag is 0 and mysql-monitor_replication_lag_group_by_host='true', a replica was incorrectly shunned because of replication lag