Double-clicking a subsheet will switch to the PCB, not the relevant subsheet

[Vincent-Dalstra]

Describe the bug
Double clicking a subsheet on the schematic will switch to the board file (kicad_pcb)

To Reproduce
This occurs both with github links, and when drag-and-drop the folder

1. Load project with subsheets e.g. https://github.com/Vincent-Dalstra/ESP-flash/tree/af3d36cd5e6d727cb4edfe8559778281b62d5704
2. Switch to 'Root' subsheet by double-clicking it on the sidebar
3. Double-click the 'USB' subsheet on the schematic

Expected behavior

Same behaviour as KiCAD.

i.e.

Double clicking a subsheet on the schematic SHOULD switch to the relevant subsheet, in the same way KiCAD itself does.

[Vincent-Dalstra]

I discovered this while working on the previous issue. Thought I'd broken something, but turns out it was already there before.

I'll attempt to fix it once I've dealt with the other issue.