selecting parent node does not select children with hasChildren true

[sutej-pal]

I am using v7.2.0 with angular 5.

HTML
<tree-root #treeRoot [nodes]="nodesOfSites" [options]="options"></tree-root>
TS
nodesOfSites = []; options: any = { useCheckbox: true, getChildren: (node: TreeNode) => this.getChildren(node) };
When I select the parent node, it does not select all child nodes. All the child nodes with hasChildren: false get selected but child nodes with hasChildren: true does not get selected.

[ThomasThelen]

Just as a data point, I'm using @circlon/angular-tree-component 11.0.4 with Angular 13.3.3 and it seems to be working for me