FIX: use safe navigation operator for params

[fzngagan]

Bug report: https://meta.discourse.org/t/-/289850
Solution ref: https://stackoverflow.com/questions/34794697

custom_fields might not be passed if the request is via API. We need to handle the case so that there's no error thrown(NoMethodError is being thrown currently).

I didn't include a test case because its not simple to test. Using put inside expect {} doesn't raise the error in the controller up to the invocation it seems?

[SamSaffron]

test should be easy though, just don't set the custom_field param when making the request call.

You would just put and make sure you get a 200...

[nattsw]

Doubly approved!