cell/src/main/java/jetbrains/jetpad/cell/toDom/IndentRootCellMapper.java [113:142]:
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    ) {
      @Override
      protected void onVisibilityChanged(Cell cell, PropertyChangeEvent<Boolean> event) {
        myIndentUpdater.visibilityChanged(cell, event);
      }
    };
  }

  @Override
  protected boolean isAutoChildManagement() {
    return false;
  }

  @Override
  protected boolean isAutoPopupManagement() {
    return false;
  }

  @Override
  protected void onAttach(MappingContext ctx) {
    super.onAttach(ctx);

    for (Cell child : getSource().children()) {
      myIndentUpdater.childAdded(child);
    }
    myIndentUpdater.initialized();

    myRegistration = getSource().addListener(new IndentContainerCellListener() {
      @Override
      public void childAdded(CollectionItemEvent<? extends Cell> event) {
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cell/src/main/java/jetbrains/jetpad/cell/toView/IndentRootCellMapper.java [108:137]:
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    ) {
      @Override
      protected void onVisibilityChanged(Cell cell, PropertyChangeEvent<Boolean> event) {
        myIndentUpdater.visibilityChanged(cell, event);
      }
    };
  }

  @Override
  protected boolean isAutoChildManagement() {
    return false;
  }

  @Override
  protected boolean isAutoPopupManagement() {
    return false;
  }

  @Override
  protected void onAttach(MappingContext ctx) {
    super.onAttach(ctx);

    for (Cell child : getSource().children()) {
      myIndentUpdater.childAdded(child);
    }
    myIndentUpdater.initialized();

    myRegistration = getSource().addListener(new IndentContainerCellListener() {
      @Override
      public void childAdded(CollectionItemEvent<? extends Cell> event) {
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