remove track and exclusive dependencies from sequence

app/widget/timelinewidget/undo/timelineundogeneral.cpp

@@ -591,13 +591,18 @@ void TrackReplaceBlockWithGapCommand::CreateRemoveTransitionCommandIfNecessary(b
   }
 }
 
-void TimelineRemoveTrackCommand::redo()
+void TimelineRemoveTrackCommand::prepare()
 {
   list_ = track_->sequence()->track_list(track_->type());
 
   index_ = list_->GetArrayIndexFromCacheIndex(track_->Index());
 
-  Node::DisconnectEdge(track_, list_->track_input(index_));
+  remove_command_ = new NodeRemoveWithExclusiveDependenciesAndDisconnect(track_);
+}
+
+void TimelineRemoveTrackCommand::redo()
+{
+  remove_command_->redo_now();
 
   list_->parent()->InputArrayRemove(list_->track_input(), index_);
 }
@@ -606,7 +611,7 @@ void TimelineRemoveTrackCommand::undo()
 {
   list_->parent()->InputArrayInsert(list_->track_input(), index_);
 
-  Node::ConnectEdge(track_, list_->track_input(index_));
+  remove_command_->undo_now();
 }
 
 }

app/widget/timelinewidget/undo/timelineundogeneral.h

@@ -167,15 +167,23 @@ class TimelineRemoveTrackCommand : public UndoCommand
 {
 public:
   TimelineRemoveTrackCommand(Track *track) :
-    track_(track)
+    track_(track),
+    remove_command_(nullptr)
   {}
 
+  virtual ~TimelineRemoveTrackCommand()
+  {
+    delete remove_command_;
+  }
+
   virtual Project* GetRelevantProject() const override
   {
     return track_->project();
   }
 
 protected:
+  virtual void prepare() override;
+
   virtual void redo() override;
 
   virtual void undo() override;
@@ -187,6 +195,8 @@ private:
 
   int index_;
 
+  UndoCommand *remove_command_;
+
 };
 
 class TransitionRemoveCommand : public UndoCommand {