Gerrit sends watcher notification emails with multiple addresses in cleartext

I'm watching a project in gerrit. Every time a new patch is created, Gerrit automatically sends an email to me.

Problem: that email contains the addresses of every watcher on the same project, in the Reply-To header. I don't see why I should know about them and why they should know about me.

To reproduce: subscribe multiple people for notifications in any project, create a commit and upload it.