How to reproduce:
1. Open the attached Project "slashesTest"
2. Build the Unity Project for iOS
3. Build the Xcode Project
Expected result: The Xcode Project is built successfully
Actual result: The Xcode Project fails with the following error:
"Build input file cannot be found: '<PATH_TO_XCODE_PROJECT>/en.lproj\InfoPlist.strings'. Did you forget to declare this file as an output of a script phase or custom build rule which produces it?"
Reproducible with: 2023.1.20f1, 2023.2.0b18, 2023.3.0a14
Could not test with: 2021.3.32f1, 2022.3.13f1 (PBXProject.AddLocaleVariantFile does not exist)