[Moose-dev] DNU: ROMondrianViewBuilder >> container...

I'm getting this error in my visualizations. Should I open a bug entry? DNU: ROMondrianViewBuilder >> container... To reproduce: execute the following code in a freshly downloaded moose image, trigger the visualization by right-clicking on a number and selecting the menu item.... | browser | browser := GLMTabulator withStatusbar. browser column: #one; column: #two. browser transmit to: #one; andShow: [ :a | a list title: 'Select and trigger from menu'; display: [:x | 1 to: x ]; selectionAct: [:list | | value | value := list selection * 10. "simulate some custom setup" (list pane port: #customSelection) value: value ] entitled: 'Multiply by 10 and then send outside' ]. browser transmit to: #two; from: #one port: #customSelection; andShow: [ :a | a roassal title: 'Numbers in Roassal'; painting: [:view :number | view shape label. view nodes: (1 to: number). view edgesFrom: [:each | each // 5 ]. view treeLayout. ROEaselMorphic new populateMenuOn: view. ]]. browser openOn: 42