Violation of immutability while purging of private data from fabric ledger?

Violation of immutability while purging of private data from fabric ledger?

If private data has a lifespan, and it is purged after this lifespan. Doesn't this violate the fundamental principle of immutability and the core idea of the blockchain. I know that the hash of these private data is stored in the ledger but if a data deletion is occurring then it seems that the core

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