What is reprovisioning? Is this to be expected during normal cluster operation?
Reprovisioning can happen within your cluster's normal operation but could also be evidence of another issue if it occurs frequently. Provisioning is when a replica database is downloading and replaying a snapshot from a primary database. Reprovisioning is when this process needs to repeat.
Reprovisioning can occur when a "secondary" partition in high availability falls behind in its transaction logs, and the "primary" partition shares a new snapshot with the "secondary" (or replica) partition in the database.
An unrecoverable replication error also results in reprovisioning.
You can check the state of the databases within your cluster by running SHOW DATABASES; from a database connection.