[This](https://github.com/geany/geany/commit/d3ded11ad2c8caeb0dd4aef2fcff517c5672b2...) changed the shape of the widget tree from:
``` Notebook page Scrolled window Symbols treeview ```
to
``` Notebook page Box Filter entry Scrolled window Symbols treeview ```
So the navigation in that function needs to be adapted to step to second child and down another level.