Blackboard in the Shader Graph does not scroll horizontally when the "Shift" button is held and the mouse wheel or touchpad is scrolled vertically

Reproduction steps:
1. Open the attached "repro_IN-52095.zip" project
2. Open the "Bacteria.shadersubgraph" Shader Graph ("Assets > Samples > Shader Graph > 14.0.8 > Procedural Patterns")
3. Turn on the Blackboard by pressing the "Blackboard" button in the window Overlay
4. Press somewhere on the Blackboard (so you're focusing it) and, while holding the "Shift" button, scroll down vertically with your mouse wheel or with your touchpad

Expected result: The Blackboard view scrolls horizontally
Actual result: The Blackboard does not scroll horizontally

Reproduced with: 2021.3.30f1, 2022.3.8f1, 2023.1.11f1, 2023.2.0b7, 2023.3.0a3

Reproduced on: Windows 11 (10.0.22621) (user's), Windows 10 (22H2)
Not reproduced on: No other environments tested