Merge pull request 'Send invites only if invited during the sync request'...

Merge pull request 'Send invites only if invited during the sync request' (#176) from gnieto/conduit:fix/send-invite-when-needed into master

Reviewed-on: https://git.koesters.xyz/timo/conduit/pulls/176


Reviewed-by: Timo Kösters <timo@koesters.xyz>