How to reproduce (1):
1. Create any new project
2. Open the Shortcuts window (Edit → Shortcuts…)
3. Double click on the Shortcut of the “Analysis/Frame All”
4. Hold Shift and scroll the mouse wheel upwards
5. Observe the Shortcut of the command

Expected result: The Shortcut has been set to “Shift + Wheel Up”
Actual result: The Shortcut has been set to “Shift + Wheel Down”

Reproducible with: 6000.0.38f1, 6000.1.0b6, 6000.2.0a3
Could not test with: 2021.3.48f1, 2022.3.58f1(Wheel Up and Wheel Down Shortcuts do not exist)

How to reproduce (2):
1. Create any new project
2. Add the ShiftWheelTest.cs script attached in the comments.
3. Scroll the wheel of the mouse when focusing the SceneView

Expected result: The events are correctly displayed
Actual result: As soon as the key modifier is pressed, KeyCode are set to WheelDown, even when WheelUp is triggered.

Reproduced on: Windows 11, MacOS
Not reproduced on: No other environment tested

Note: The issue still happens when using Shift with other modifiers in the Shortcut for example “Ctrl + Shift + Wheel Up” or “Alt + Shift + Wheel Up”