From 9f16d92f463e9784431b911c6a9136f1f33bbeb1 Mon Sep 17 00:00:00 2001
From: Edi Carlos Ferrari Vergis <edi.vergis@gmail.com>
Date: Fri, 6 Dec 2019 10:26:59 -0300
Subject: [PATCH] =?UTF-8?q?Corre=C3=A7=C3=A3o=20paliativa=20de=20refer?=
 =?UTF-8?q?=C3=AAncia=20circular=20na=20especifica=C3=A7=C3=A3o=20do=20Mod?=
 =?UTF-8?q?el?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 flask_restplus/swagger.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/flask_restplus/swagger.py b/flask_restplus/swagger.py
index 7c534b26..51e561e7 100644
--- a/flask_restplus/swagger.py
+++ b/flask_restplus/swagger.py
@@ -582,6 +582,8 @@ def register_model(self, model):
         name = model.name if isinstance(model, ModelBase) else model
         if name not in self.api.models:
             raise ValueError('Model {0} not registered'.format(name))
+        if name in self._registered_models:
+            return ref(model)
         specs = self.api.models[name]
         self._registered_models[name] = specs
         if isinstance(specs, ModelBase):