crash when invoking an item in the Outline listview

latest v0.3 crashes with an `invalid opcode exception` when trying to click on an element in the outline listview (text).
Running Haiku R1/Develop hrev58787

[DocumentViewer-4255-debug-02-04-2025-15-42-38.report.txt](https://github.com/user-attachments/files/19571537/DocumentViewer-4255-debug-02-04-2025-15-42-38.report.txt)