Setting a different number of minimum replicas for reading and writing operations

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Hi all,

Is it possible to create a pool where the minimum number of replicas for the write operation to be confirmed is 2 but the minimum number of replicas to allow the object to be read is 1?

This would be useful when a pool consists of immutable objects, so we'd have:
* size 3 (we always keep 3 replicas of all objects)
* min size for write 2 (write is complete once 2 replicas are created)
* min size for read 1 (read is allowed even if only 1 copy of the object is available)

Thanks,

Sergio
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