Absolutely nothing.
Source: I sell EVSEs and someone asked this question on my company's website. It got me thinking and google lead me here.
What you probably don't realize is that the Type 2 inlet on the cable has a longer barrel and the pins are recessed into the connector. What this means is that the communication pins would not touch so to the charger - it would appear if nothing was there.
The longer inlet connector barrel also prevents Type 2 leads being cascaded as extension leads.
Your type 2 cable image is broken but compare the lengths of the connectors.