500 returned using consul intention get with a single service

[shoekstra]

Overview of the Issue

Playing around in http://hashi.co/connect-demo a 500 is returned when a single service is passed to consul intention get.

Reproduction Steps

/ # consul intention get
Error: command requires exactly 1 or 2 arguments
/ # consul intention get service1
Error reading the intention: Unexpected response code: 500
/ # consul intention get service1 service2
Error: Intention with source "service1" and destination "service2" not found.

/ # consul  intention create service1 service2
Created: service1 => service2 (allow)
/ # consul  intention get service1
Error reading the intention: Unexpected response code: 500
/ # consul  intention get service1 service2
Source:       service1
Destination:  service2
Action:       allow
ID:           429d76bf-3475-4284-c5e1-95dd57dd83c0
Created At:   Tuesday, 26-Jun-18 20:11:00 UTC

Consul info for both Client and Server

As it's in the training sandbox I only provide the build number:

build:
        prerelease = rc1
        revision = 6db861e2
        version = 1.2.0

[mitchellh]

Thanks, got a fix up in a PR. You can see the linked PR above for details about what happened here!