
This change makes `getPreviousOrParentTNode` return `TNode|null` (rather than just `TNode`) which is more reflective of the reality. The `getPreviousOrParentTNode` can be `null` upon entering the `LView`. PR Close #38707
This change makes `getPreviousOrParentTNode` return `TNode|null` (rather than just `TNode`) which is more reflective of the reality. The `getPreviousOrParentTNode` can be `null` upon entering the `LView`. PR Close #38707