MLOAD - DBC.TABLES LastAlterTimestamp updated during loading, then reverted afterwards

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MLOAD - DBC.TABLES LastAlterTimestamp updated during loading, then reverted afterwards

Hello, we are on Teradata version 15.0.5.11, and we are observing behavior where a table's LastAlterTimestamp is temporarily updated in DBC during mload, then reverted back to its previous LastAlterTimestamp after mload releases.  Is this expected, and can anybody explain why? We have a process that checks the LastAlterTimestamp and we get some false positives from this.

 

Thanks!