Ensure self, obj are on same Redis before PFMERGE #264
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Before, we were just ensuring that `obj` was a Redis HyperLogLog before issuing `PFMERGE` in `HyperLogLog.update()`. That's not enough. We also need to ensure that `obj` lives on the same Redis instance/database as `self` in order for `PFMERGE` to work.
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Before, we were just ensuring that
objwas a Redis HyperLogLog beforeissuing
PFMERGEinHyperLogLog.update().That's not enough. We also need to ensure that
objlives on the sameRedis instance/database as
selfin order forPFMERGEto work.