Summary of Changes

This pull request fixes an issue in the SmartSearch indexer where fields like publish_end_date were not being updated to NULL in the database when the corresponding publish_down date was removed from an article. The root cause was the missing $updateNulls parameter in the $db->updateObject() method call, which prevents NULL values from being updated in the database.

The fix includes:

• Adding the $updateNulls parameter set to true in the $db->updateObject() method call.

Testing Instructions

1. Before applying the fix:

   • Create an article with no publish_down date → Index is correct.
   • Add a publish_down date → Index updates with the new date.
   • Remove the publish_down date → Index retains the old publish_end_date value.

2. After applying the fix:

   • Create an article with no publish_down date → Index is correct.
   • Add a publish_down date → Index updates with the new date.
   • Remove the publish_down date → Index correctly updates publish_end_date to NULL.

Actual Result BEFORE applying this Pull Request

• Articles with removed publish_down dates still retain the old publish_end_date in the index.

Expected Result AFTER applying this Pull Request

• Articles with removed publish_down dates have their publish_end_date properly updated to NULL in the database.