Shader errors are logged in the Player log file when Strict shader variant matching is enabled and dynamic_branch is used in ShadowCaster pass

Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “Assets/New Scene“ Scene
3. Build and Run the Project
4. Using the File Explorer, go to and open the Player log file

Expected result: The log file contains no error messages
Actual result: “Shader Unlit/NewUnlitShader, subshader 0, pass 1, stage vertex: variant A_1 not found.” and “Shader Unlit/NewUnlitShader, subshader 0, pass 1, stage pixel: variant A_1 not found.” are logged in the log file

Reproducible with: 2022.3.25f1, 2023.2.19f1, 6000.0.0b16
Couldn't test with: 2021.3.37f1 (Shader error when building)

Reproducible on: Windows 11
Not reproducible on: No other environment tested