Merge branch '1072284_loghist_return' into '2021.0'

1072284 loghist return

See merge request xrm/basic!711

process/Loghistory_lib/process.js

@@ -137,7 +137,7 @@ LogHistoryExecutor.prototype.generateLogHistory = function (pIdvalue, pExtra)
     }
     
     if (!somethingTolog)
-        return null;
+        return [null, null, null];
     
     var description = [];
     var oldvalues = {};