leaf-filtered strategy in QTree

[umonaca]

According to the "Tick Strategy" part of QTree document, there are four tick strategies available: strict, leaf, leaf-filtered, none.
But I am unable to see the difference between leaf and leaf-filtered in the demo.
Can someone give an working example showing the difference of leaf-filtered and leaf?
Please also tell me the steps to reproduce the difference.
Thanks!

[donnyJ42]

hope this helps: https://v0-17.quasar-framework.org/components/tree.html#Tick-Strategy