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Follow https://github.com/redis/redis/pull/14423 In https://github.com/redis/redis/pull/14423, I thought the last lpNext operation of the iterator occurred at the end of streamIteratorGetID. However, I overlooked the fact that after calling `streamIteratorGetID()`, we might still use `streamIteratorGetField()` to continue moving within the current entry. This means that during reverse iteration, the iterator could move back to a previous entry position. To fix this, in this PR I record the current position at the beginning of streamIteratorGetID(). When we enter it again next time, we ensure that the entry position does not exceed the previous one, that is, during forward iteration the entry must be greater than the last entry position, and during reverse iteration it must be smaller than the last entry position. Note that the fix for https://github.com/redis/redis/pull/14423 has been replaced by this fix.