duplication fixed. Crash on closing the application after creating a new document fixed.

src/board/UBBoardController.cpp

@@ -481,7 +481,7 @@ void UBBoardController::stylusToolDoubleClicked(int tool)
 void UBBoardController::addScene()
 {
     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-    persistCurrentScene();
+    persistCurrentScene(false,true);
 
     UBDocumentContainer::addPage(mActiveSceneIndex + 1);
 
@@ -523,7 +523,7 @@ void UBBoardController::addScene(UBGraphicsScene* scene, bool replaceActiveIfEmp
         }
         else
         {
-            persistCurrentScene();
+            persistCurrentScene(false,true);
             UBPersistenceManager::persistenceManager()->insertDocumentSceneAt(selectedDocument(), clone, mActiveSceneIndex + 1);
             setActiveDocumentScene(mActiveSceneIndex + 1);
         }
@@ -546,7 +546,7 @@ void UBBoardController::addScene(UBDocumentProxy* proxy, int sceneIndex, bool re
 void UBBoardController::duplicateScene(int nIndex)
 {
     QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
-    persistCurrentScene();
+    persistCurrentScene(false,true);
 
     QList<int> scIndexes;
     scIndexes << nIndex;
@@ -1538,7 +1538,7 @@ void UBBoardController::moveSceneToIndex(int source, int target)
     if (selectedDocument())
     {
 
-        persistCurrentScene();
+        persistCurrentScene(false,true);
 
         UBDocumentContainer::movePageToIndex(source, target);
 
@@ -1890,14 +1890,14 @@ void UBBoardController::show()
     UBApplication::mainWindow->actionLibrary->setChecked(false);
 }
 
-void UBBoardController::persistCurrentScene(bool isAnAutomaticBackup)
+void UBBoardController::persistCurrentScene(bool isAnAutomaticBackup, bool forceImmediateSave)
 {
     if(UBPersistenceManager::persistenceManager()
             && selectedDocument() && mActiveScene && mActiveSceneIndex != mDeletingSceneIndex
             && (mActiveSceneIndex >= 0) && mActiveSceneIndex != mMovingSceneIndex
             && (mActiveScene->isModified()))
     {
-        UBPersistenceManager::persistenceManager()->persistDocumentScene(selectedDocument(), mActiveScene, mActiveSceneIndex, isAnAutomaticBackup);
+        UBPersistenceManager::persistenceManager()->persistDocumentScene(selectedDocument(), mActiveScene, mActiveSceneIndex, isAnAutomaticBackup,forceImmediateSave);
         updatePage(mActiveSceneIndex);
     }
 }

src/board/UBBoardController.h

@@ -156,7 +156,7 @@ class UBBoardController : public UBDocumentContainer
             return mSystemScaleFactor;
         }
         qreal currentZoom();
-        void persistCurrentScene(bool isAnAutomaticBackup = false);
+        void persistCurrentScene(bool isAnAutomaticBackup = false, bool forceImmediateSave = false);
         void showNewVersionAvailable(bool automatic, const UBVersion &installedVersion, const UBSoftwareUpdate &softwareUpdate);
         void setBoxing(QRect displayRect);
         void setToolbarTexts();

src/core/UBPersistenceManager.cpp

@@ -725,7 +725,7 @@ UBGraphicsScene* UBPersistenceManager::loadDocumentScene(UBDocumentProxy* proxy,
     return scene;
 }
 
-void UBPersistenceManager::persistDocumentScene(UBDocumentProxy* pDocumentProxy, UBGraphicsScene* pScene, const int pSceneIndex, bool isAnAutomaticBackup)
+void UBPersistenceManager::persistDocumentScene(UBDocumentProxy* pDocumentProxy, UBGraphicsScene* pScene, const int pSceneIndex, bool isAnAutomaticBackup, bool forceImmediateSaving)
 {
     checkIfDocumentRepositoryExists();
 
@@ -745,13 +745,14 @@ void UBPersistenceManager::persistDocumentScene(UBDocumentProxy* pDocumentProxy,
     if (pScene->isModified())
     {
         UBThumbnailAdaptor::persistScene(pDocumentProxy, pScene, pSceneIndex);
-        QTime time;
+        if(forceImmediateSaving)
-        time.start();
+            UBSvgSubsetAdaptor::persistScene(pDocumentProxy,pScene,pSceneIndex);
+        else{
             UBGraphicsScene* copiedScene = pScene->sceneDeepCopy();
-        qDebug() << "time to duplicate scene " << time.elapsed() << " ms";
             mWorker->saveScene(pDocumentProxy, copiedScene, pSceneIndex);
             pScene->setModified(false);
         }
+    }
 
 }
 
@@ -909,9 +910,11 @@ bool UBPersistenceManager::isEmpty(UBDocumentProxy* pDocumentProxy)
     if (theSoleScene)
     {
         empty = theSoleScene->isEmpty();
-        if(empty)
+        if(empty){
+            mSceneCache.removeScene(pDocumentProxy,0);
             delete theSoleScene;
         }
+    }
     else
     {
         empty = true;

src/core/UBPersistenceManager.h

@@ -75,7 +75,7 @@ class UBPersistenceManager : public QObject
         virtual void duplicateDocumentScene(UBDocumentProxy* pDocumentProxy, int index);
 
         virtual void persistDocumentScene(UBDocumentProxy* pDocumentProxy,
-                UBGraphicsScene* pScene, const int pSceneIndex, bool isAnAutomaticBackup = false);
+                UBGraphicsScene* pScene, const int pSceneIndex, bool isAnAutomaticBackup = false, bool forceImmediateSaving = false);
 
         virtual UBGraphicsScene* createDocumentSceneAt(UBDocumentProxy* pDocumentProxy, int index, bool useUndoRedoStack = true);