How to add upstream developer as a (co)maintainer of the existing application?

[Peter Lemenkov]

Hello All!

There is a package, already included in Fedora, and there is a
friendly and active upstream developer, who wants to be a
(co)maintainer of this app. (S)he doesn't maintain any packages in
Fedora currently. So the question is - is there a policy on how such
situations should be handled?

I remember, that if Redhat hires someone from upstream, then no
additional procedures with review requests and sponsorship needed (at
least visible to others, outside Redhat) - (s)he just started to be a
(co)maintainer.

-- 
With best regards, Peter Lemenkov.