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    Type:Improvement 
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    Resolution: Fixed
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    Priority:Major - P3 
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    Affects Version/s: None
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    Component/s: Not Applicable
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    None
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        Storage Engines, Storage Engines - Foundations
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        SE Foundations - 2025-08-01, SE Foundations - 2025-08-15
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        1
While working on WT-14648, there is an implicit knowledge noting that session->id == 0 is always the default session. This is not easy knowledge and requires context to understand. We should create a macro that does this check.