razor tool: only push an undocommand if blocks were actually detected to split

2020-01-02 05:01:39 +11:00
parent ae71b206cd
commit 104415a4de
1 changed files with 3 additions and 1 deletions
@@ -83,7 +83,9 @@ void TimelineWidget::RazorTool::MouseRelease(TimelineViewMouseEvent *event)

  split_tracks_.clear();

-  Core::instance()->undo_stack()->push(new BlockSplitPreservingLinksCommand(blocks_to_split, {split_time}));
+  if (!blocks_to_split.isEmpty()) {
+    Core::instance()->undo_stack()->push(new BlockSplitPreservingLinksCommand(blocks_to_split, {split_time}));
+  }

  dragging_ = false;
 }