Just.get params always return string Optional

[irfanpule]

I update xcode 10 and recompile carthage packages use Swift 4.2. After recompile any problem in Just.get when I use args params:

Ex:

let params: [String: String] = [
    'session_key': Session.key!
]

Just.get(url, params: params) { response in

request always invalid session_key to server. Then I look access.log, I found query string use Optional
ex: ?session_key=Optional%28%2276jqfaeq94ar02boscaie91idbq6e0hz%22%29

[dduan]

fixed in 0.7.0. Thanks for reporting!