guration of the logging subsystem when the  DB_ENV-&gt;log_set_config method is called with the DB_LOG_ZERO flag in a situation where a DB_ENV handle is open and an environment exists. [#17532]
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                <p>
 Fixed a bug to prevent memory leak caused when the environment is closed by the named in-memory database in a private database environment which has open named in-memory databases. [#17816]
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