AnalyticalTable: Tree Table selecting parent selects all children

[stevetsanders]

Describe the bug
When the analytical table has tree data and the user selects a parent row, all children are selected

To Reproduce

1. create analytical table with tree data
2. expand a parent node to view the children
3. select the parent
   => see that the children are now all selected

Expected behavior
I would expect that only the parent node is selected

Screenshots
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UI5 Web Components for React Information
Operating System:
@ui5/webcomponents-react version:
Do you have a dependency to@ui5/webcomponents in your package.json? If yes, which version?:

If you are not sure, you can find out by running npm ls @ui5/webcomponents-react or yarn why @ui5/webcomponents-react

Additional context
Add any other context about the problem here.

[MarcusNotheis]

@Lukas742 could you look into that one?