Fix issue circular ref not resolved if baseDoc is provided

[buunguyen]

"Fixes" swagger-api/swagger-ui#2889 and swagger-api/swagger-ui#2923.

[shockey]

Confirmed fix for swagger-api/swagger-ui#2889 and swagger-api/swagger-ui#2923. LGTM! Thanks for this @buunguyen.

[gaurav517]

I see same error in version 3.13.6.

• OS: macOS
• Browser: chrome
• Version: 66.0.3359.181
• Swagger-UI version: 3.13.6
• Swagger/OpenAPI version: Swagger 2.0

In case of big nested request/response json spec, I get following in console after trying to expand the operation in swagger-ui and the section of operation shows endless spinner. After refreshing we see the operation details.

system.js:461 RangeError: Maximum call stack size exceeded
    at immutable.js:2405
    at Le.pe.withMutations (immutable.js:1353)
    at He (immutable.js:2405)
    at Le.set (immutable.js:2096)
    at nt (immutable.js:2780)
    at Ze.set (immutable.js:2686)
    at immutable.js:2651
    at immutable.js:3016
    at immutable.js:2699
    at Le.__iterate (immutable.js:2206)

[gaurav517]

created followup issue swagger-api/swagger-ui#4637

[ghost]

Could you please clarify what does "baseDoc" mean ? How can we skip that ?

[ghost]

Issue has been raised here: https://stackoverflow.com/questions/57370292/swagger-system-js461-rangeerror-maximum-call-stack-size-exceeded-using-ma