Parsing errors in 0.9.0-alpha4 for JSON that parses correctly in the version I had been using (0.8.3)

[russgalloway]

RDM Version: 0.9.0-alpha4
Environment (OS name and version): OS X 10.11.6
Redis Server Version: 2.8.4 - Ubuntu 14.04.5 LTS (GNU/Linux 3.16.0-77-generic x86_64)

Steps to reproduce:

(alpha4 cloned and built from source)

JSON that was being parsed correctly on v0.8.3-2550 doesn't seem to parse in 0.9.0-alpha4.

small example:
{"$type":"Server.Lib.Models.RecentCommentsLastSent, server","at":"2017-04-03T14:00:01.560329-05:00"}

Expected result:
Parsed/formatted JSON like v0.8.3-2550:
{
"$type": "Server.Lib.Models.RecentCommentsLastSent, server",
"at": "2017-04-03T14:00:01.560329-05:00"
}

Actual Result:
"Error: Invalid JSON"

[Delagen]

It hang on switch parsing on my environment
Windows 10
Redis 3.2.4