no way to find out who you assigned repo access to

When assigning access to a private repository it should show you a selector of the people you are working iwth instead of an autocompleter of everyone on github. There is no way to find out if you are giving access to the right person this way, how would I know if it's the guy I added or someone else? And how would I tell what's his nickname? it's really a flawed process and I think it should be fixed.