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    Type:Task 
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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: Aggregation Framework
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    None
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        Fully Compatible
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        Query 2017-07-10
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        0
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When loading timezone rules as part of SERVER-29207 we ran into some undefined behavior as caught in this patch build. We should fix all the undefined behavior within the library and remove it from the ubsan blacklist.