BUG #14333: Remote connections for members of role in pg_hba.conf

The following bug has been logged on the website:

Bug reference: 14333
Logged by: B. Rodgers
Email address: brodgers3(at)oreillyauto(dot)com
PostgreSQL version: 9.3.13
Operating system: Ubuntu 14.04.4 LTS
Description:

--- create a role "read_group" with permissions to connect and select on all
objects

--- Similar, create new user to be managed by "read_group" permissions ---
CREATE ROLE myuser LOGIN CONNECTION LIMIT 5;
GRANT read_group TO myuser;

--- Verify user exists and is member of group "read_group" ---
mydb=> \dg myuser
List of roles
Role name | Attributes | Member of
-----------+---------------+------------------
myuser | 5 connections | {read_group}

--- pg_hba.conf entry intended to allow members of "read_group" to connect
---
host mydb +read_group 172.XX.YY.0/24 md5

--- Error received upon attempting remote connection ---
FATAL: no pg_hba.conf entry for host "172.XX.YY.ZZ", user "myuser", database
"mydb", SSL off

Expected either valid connection or password error.

Looking to control arbitrary large list of users with just a couple managed
roles such as "read" or "write" groups such that only the "read" and "write"
groups are specified in places like pg_hba.conf.