[qt5cpp] Fix crash when API return a map container (#7933)

* [qt5cpp] Fix crash when API return a map container

* qint32 => {{returnBaseType}}

Author: MartinDelille

modules/swagger-codegen/src/main/resources/qt5cpp/api-body.mustache

@@ -185,9 +185,9 @@ void
     QJsonObject obj = doc.object();
 
     foreach(QString key, obj.keys()) {
-        qint32* val;
+        {{returnBaseType}} val;
         setValue(&val, obj[key], "{{returnBaseType}}", QString());
-        output->insert(key, *val);
+        output->insert(key, val);
     }
     {{/isMapContainer}}
     {{^isMapContainer}}

samples/client/petstore/qt5cpp/client/SWGStoreApi.cpp

@@ -126,9 +126,9 @@ SWGStoreApi::getInventoryCallback(SWGHttpRequestWorker * worker) {
     QJsonObject obj = doc.object();
 
     foreach(QString key, obj.keys()) {
-        qint32* val;
+        qint32 val;
         setValue(&val, obj[key], "qint32", QString());
-        output->insert(key, *val);
+        output->insert(key, val);
     }
     worker->deleteLater();