Duplicated parentheses

[danikarik]

Problem statement

Generated code duplicates parentheses on method call. After generation I got errors like:

if swag.IsZero(m.Attachments()()) { // not required
    return nil
}

m.Attachments()() <---- duplicated

Swagger specification

spec

Steps to reproduce

swagger generate client \
    --additional-initialism=SMS \
    --additional-initialism=MMS \
    --additional-initialism=FAX \
    --name=clicksend \
    --spec=https://raw.githubusercontent.com/danikarik/clicksend-go/master/api/swagger.yaml

Environment

swagger version: 0.17.2
go version: 1.11.3
OS: MacOS Mojave

[fredbi]

This is indeed a bug I could reproduce. It occurs with polymorphic types.

[fredbi]

Here is a fix you can fetch right away. This should be soon merged into next release.