message: Add sanity check for if dock area isn't available while restoring layout
diff: @@ -1657,6 +1657,9 @@ void TextureViewer::SetupTextureTabs()
  {
  ToolWindowManagerArea *textureTabs = ui->dockarea->areaOf(ui->renderContainer);
  + if(!textureTabs)
  + return;
  +
  QIcon tabIcon;
  tabIcon.addFile(QStringLiteral(":/logo.svg"), QSize(), QIcon::Normal, QIcon::Off);
  