voice_application_sid missing in Clients JSON response

[ammendonca]

When querying a client which has an application associated with it, the voice_application_sid is missing from the JSON response, while it shows when using the XML version.

XML

<RestcommResponse>
  <Client>
    <Sid>CL1271d8ce23054588a14c59459910a36b</Sid>
    <DateCreated>Fri, 3 Nov 2017 23:22:36 +0000</DateCreated>
    <DateUpdated>Fri, 3 Nov 2017 23:22:36 +0000</DateUpdated>
    <AccountSid>ACae6e420f425248d6a26948c17a9e2acf</AccountSid>
    <ApiVersion>2012-04-24</ApiVersion>
    <FriendlyName>xxx</FriendlyName>
    <Login>xxx</Login>
    <Password>xxx</Password>
    <Status>1</Status>
    <VoiceMethod>POST</VoiceMethod>
    <VoiceFallbackMethod>POST</VoiceFallbackMethod>
    <VoiceApplicationSid>AP81cf45088cba4abcac1261385916d582</VoiceApplicationSid>
    <Uri>/2012-04-24/Accounts/ACae6e420f425248d6a26948c17a9e2acf/Clients/CL1271d8ce23054588a14c59459910a36b</Uri>
  </Client>
</RestcommResponse>

JSON

{
  "sid": "CL1271d8ce23054588a14c59459910a36b",
  "date_created": "Fri, 3 Nov 2017 23:22:36 +0000",
  "date_updated": "Fri, 3 Nov 2017 23:22:36 +0000",
  "account_sid": "ACae6e420f425248d6a26948c17a9e2acf",
  "api_version": "2012-04-24",
  "friendly_name": "xxx",
  "login": "xxx",
  "password": "xxx",
  "status": "1",
  "voice_method": "POST",
  "voice_fallback_method": "POST",
  "uri": "/2012-04-24/Accounts/ACae6e420f425248d6a26948c17a9e2acf/Clients/CL1271d8ce23054588a14c59459910a36b.json"
}

[ammendonca]

FIxed with #2662