Max. Metal Shader Standard has no effect

Development Rendering
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1

Hi,

the Max. Metal Shader Standard to Target can be set in the Platform specific MacOS settings, but this code in MacTargetPlatformModule.cpp seems to prevent it:

int32 Value = 1;
GConfig->GetInt(TEXT("/Script/MacTargetPlatform.MacTargetSettings"), TEXT("MaxShaderLanguageVersion"), Value, GEngineIni);
TargetSettings->MaxShaderLanguageVersion = FMath::Max(Value, 4);

is this on purpose or can we still target MacOS 10.13+ when changing this line of code?