A replacement base class to use instead of MonoBehaviour. Inheriting from this class will allow you to validate properties without encountering the OnValidate garbage collection bug. OnValidateProperty is also guaranteed to only execute when a change is made in the Inspector Window. It doesn't run when loading an asset into memory or loading a s…

BaseMonoBehaviour.cs

public class BaseMonoBehaviour : MonoBehaviour
{
    public virtual bool OnValidateProperty(string propertyName)
    {
        return false;
    }

    // Remember to include the OnDestroy code from Step 3 as well
}