QmlDesigner: crash fix for copy and paste

imports (in the model) are broken (regression)
Since I rely on working imports in copy and paste broke.

I hardcode 4.7 in this patch!

Reviewed-by: Kai Koehne

src/plugins/qmldesigner/components/integration/designdocumentcontroller.cpp

@@ -455,7 +455,7 @@ void DesignDocumentController::deleteSelected()
 
 void DesignDocumentController::copySelected()
 {
-    QScopedPointer<Model> model(Model::create("Qt/Rectangle"));
+    QScopedPointer<Model> model(Model::create("import Qt 4.7; Qt/Rectangle"));
     model->setMetaInfo(m_d->model->metaInfo());
 
     Q_ASSERT(model);

src/plugins/qmldesigner/core/model/modelmerger.cpp

@@ -170,8 +170,9 @@ void ModelMerger::replaceModel(const ModelNode &modelNode)
 {
      RewriterTransaction transaction(view()->beginRewriterTransaction());
 
-    foreach (const Import &import, modelNode.model()->imports())
-        view()->model()->addImport(import);
+     foreach (const Import &import, modelNode.model()->imports()) {
+        //view()->model()->addImport(import); //### 
+     }
     view()->model()->setFileUrl(modelNode.model()->fileUrl());
 
     ModelNode rootNode(view()->rootModelNode());