Reproduction steps:
1. Open the attached "HDRPblank" project
2. In the Project window, search for the file "LightDefinition.cs.hlsl" in Packages and open the file in any text editor
3. Observe the value of MAX_CUBE_REFLECTIONS on line 17 which is currently 64
4. In Unity, go to Edit > Rendering > Generate Shader Includes
5. Reload the file "LightDefinition.cs.hlsl" in your text editor so that it now shows the newly generated version
6. Observe the value of MAX_CUBE_REFLECTIONS on line 17 which is now 128

Expected Result: The value of MAX_CUBE_REFLECTIONS stays the same after regeneration
Actual Result: The value of MAX_CUBE_REFLECTIONS is different after regeneration

Reproducible with: 2022.3.25f1, 2023.2.19f1, 6000.3.0b14
Fixed in: 6000.3.0b15
Could not test with: 2021.3.37f1 (MAX_CUBE_REFLECTIONS does not exist in "LightDefinition.cs.hlsl")

Reproducible on: Windows 11 Pro
Not reproducible on: No other environments tested

Note:
- Only reproducible with HDRP
- On 2022.3.25f1, this is only reproducible if a local version of the HDRP package is created, by moving the HDRP package folder from the Library/PackageCache folder to the Packages folder