Adding an element to an array SerializedProperty – without losing overrides to it

Unity Engine
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1

The setup: I have a Prefab with a script that has an array of structs in it (_arrayOfRevealedListsProperty), serialized as part of the Prefab.

I then have Prefab Variants overriding the value of one of the items in the array. Of one of the structs. This is fine.

However, when I append an element to the array, with this code:

serializedObject.Update();

// Add the new element to the array
int newListIndex = _arrayOfRevealedListsProperty.arraySize;
_arrayOfRevealedListsProperty.InsertArrayElementAtIndex(newListIndex);

SerializedProperty newListProp = _arrayOfRevealedListsProperty.GetArrayElementAtIndex(newListIndex);

// Now I valorize the new entry
newListProp.FindPropertyRelative(nameof(RevealedItemsList.listName)).stringValue = newListName;
newListProp.FindPropertyRelative(nameof(RevealedItemsList.groupByGameObjects)).boolValue = true;
newListProp.FindPropertyRelative(nameof(RevealedItemsList.isVisible)).boolValue = true;
newListProp.FindPropertyRelative(nameof(RevealedItemsList.revealedItems)).arraySize = 0;

serializedObject.ApplyModifiedProperties();

I lose the overrides on the Variants. I would expect that by just adding to the array, whatever is overridden stays, because no indexes in the array have changed.

Is there something I’m missing that I could do to retain the overrides on my Variants, only in case of adding to the array?

Thanks.