Can't get rid of warning "this node is locked into cluster UUID but [cluster.initial_master_nodes] is set to [Z56EEW81]; remove this setting to avoid possible data loss caused by subsequent cluster bootstrap attempts"

[DavidTurner]

Ah wait, in another similar thread a user points out that this warning appears to be emitted incorrectly in the case of discovery.type: single-node:

How to avoid warning when starting with discovery.type set to single node

I believe there is a bug in de code that logs the warning (elasticsearch/server/src/main/java/org/elasticsearch/cluster/coordination/ClusterBootstrapService.java at main · elastic/elasticsearch · GitHub). The assumption is made that bootstrapRequirements is filled with the cluster.initial_master_nodes setting, but in fact it is filled with the node.name setting in case of single node discovery