Should be fixed in https://github.com/NodeBB/NodeBB/commit/1b80e6dbb2730ba35e3d59f1438af74ae1862c9b thanks for reporting.
So, I've been looking around and I can't find anywhere to enable/control email verification and / or password resets. Neither work on my site (Although I think email verification is a planned feature!)
I'm having the same problem. I installed postfix on my server and when I try to do a password reset, it says "Password Reset Sent", but I never get an email.