Component: TreeTable selection binding no longer allows for single selection

[lwestfall]

Describe the bug

#13255 fixed the selection binding for multiple selection mode while simultaneously breaking it in single selection mode.

Environment

N/A

Reproducer

No response

Angular version

^16.2.0

PrimeNG version

~16.4.1

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

18.12.0

Browser(s)

No response

Steps to reproduce the behavior

// in component class declaration
selectedNode: TreeNode;

<!-- in template - condensed to issue -->
<p-treeTable [(selection)]="selectedNode">

Expected behavior

TreeTable should allow binding either TreeTable or TreeTable[].

[vrjaroslav]

When this fix will be release ? I use version: 16.8.0 and I still getting error: Type 'TreeNode | TreeNode[] | null' is not assignable to type 'TreeNode'.
Type 'null' is not assignable to type 'TreeNode'

In code:

<p-tree selectionMode="single" [(selection)]="selectedTreeNode" />

and selectedTreeNode: TreeNode;