Convenience feature: GetSingleton() ref return

I say it would in some cases be more convenient than having to do SetSingleton(). e.g.:

Code (CSharp):

1. ref SingletonInts singletonInts = ref GetSingleton<SingletonInts>();
2.  
3. singletonInts.value1 = 0;
4. singletonInts.value2 += 1;

As opposed to:

Code (CSharp):

1. SingletonInts singletonInts = GetSingleton<SingletonInts>();
2.  
3. SetSingleton(new SingletonInts
4. {
5.     value1 = 0
6.     value2 = singletonInts.value2 + 1
7. });

You can't access the ref variable from a lambda expression due to what sounds like an edge case to me, but this is still useful for, say, an input system.