Returning a `var` inside of a tuple

[iocat]

Hi folks!

So I had the following proc signature
    
    
    proc insertsOrUpdates*[K, V](rbt: RedBlackTree[K, V], key: K, value: V): 
tuple[
        inserted: bool, value: var V]
    
    
    Run

.

But it seems the returned value inside of the tuple wasn't functioning. Is this 
a valid syntax? Did an echo repr against the returned tuple. Here's what it 
prints: [Field0 = false, Field1 = (invalid data!)]

Thanks!