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b150906d39
Snitch name needs to be exchanged within cluster once, on shadow round, so joining nodes cannot use wrong snitch. The snitch names are compared on bootstrap and on normal node start. If the cluster already used mixed snitches, the upgrade to this version will fail. In this case customer needs to add a node with correct snitch for every node with the wrong snitch, then put down the nodes with the wrong snitch and only then do the upgrade. Fixes #6832 Closes #7739