RMG012 is emitted, while RequiredMapping is set to Source, using init-only properties

[PaulVrugt]

Please do the checklist before filing an issue:

• [ x ] I have read the documentation, including the FAQ
• [ x ] I can reproduce the bug using the latest prerelease version
• [ x ] I have searched existing discussion and issue to avoid duplicates

Describe the bug
Using the latest version (4.1.1), when I use [MapperRequiredMapping(RequiredMappingStrategy.Source)] in a mapper, the mapper still complains about unmapped target properties when they have an init only setter.

Declaration code

public record Source
{
    public bool Property1 { get; set; }
}


public record Target
{
    public bool Property1 { get; init; }
    public bool Property2 { get; init; }
}

[Mapper]
public partial class ClassMapper
{
    [MapperRequiredMapping(RequiredMappingStrategy.Source)]
    public partial Target MapToEntityAuto(Source dto);
}

Actual relevant generated code

public partial class ClassMapper
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.1.1.0")]
    public partial global::Target MapToEntityAuto(global::Source dto)
    {
        var target = new global::Target()
        {
            Property1 = dto.Property1,
        };
        return target;
    }
}

Reported relevant diagnostics

• RMG012: The member Property2 on the mapping target type Target was not found on the mapping source type Source

Environment (please complete the following information):

• Mapperly Version: 4.1.1
• Nullable reference types: enabled
• .NET Version: .net 9.0
• Target Framework: .net 9.0
• Compiler Version: not sure
• C# Language Version: latest
• IDE: Visual Studio v17.12.3
• OS: Windows 11

Additional context
As soon as you change the { get; init; } of property2 to { get; get; }, the error disappears

[PaulVrugt]

you guys rock!