[Pharo-project] Repaint does not work

Hi adrian do you remember if you did something with the SketchEditorMorph when you optimise memory, because now I cannot repaint a form, I get a plainCursor error since the palette is nil. To reproduce bring halos on the pharo logo click on repaint you get one DNU because Prototype classVariable is nil and not a PaintBoxMorph then if you bring again the halos and move the mouse over the area we get a plainCursor DNU. I was not working on this area so I imagine that it may be your cleans. was working 10107 but not in 10133 Sytef