When you're making a small change on a review request or clarifying something small on a reply, sometimes you don't want another e-mail to go out to your team. We're all busy, and every e-mail we add is one more thing to look at.
RBCommons allows for trivial publishes of review requests and replies. The green draft banner for review requests and replies contains a "Send E-Mail" checkbox, checked by default. To prevent sending an e-mail to your team, just uncheck this.
Please note that this will still trigger any configured WebHooks.