赋值相同引用时Setter未执行，如何强制触发？

我的Setter代码在此处未执行，推测是由于赋值的是同一个引用（设计如此）。请问是否有语法可确保Setter执行？

var settings = new Settings();

var a = settings.ReferenceVariable;

a.Value1++;

settings.ReferenceVariable = a; // Setter is not running here, so changes to 'a' are not persisted in database

// One workaround is to set to a different value, then set back to my value.  This isn't a good solution for me
settings.ReferenceVariable = null; // Setter does run
settings.ReferenceVaraible = a; // Setter does run

public class Settings
{
    public MyClass ReferenceVariable
    {
        get => GetSettingValueFromDatabase();
        set => SetSettingValueToDatabase(value);
    }
}

编辑补充：感谢各位的帮助，我已找到问题根源——我使用了Fody/PropertyChanged包，它会修改属性setter并检查变更，这些修改在调试时不可见，因此排查起来较为困难。

内容的提问来源于stack exchange，提问作者barrett777