Marcel Taeumel uploaded a new version of ToolBuilder-Morphic to project The Trunk: http://source.squeak.org/trunk/ToolBuilder-Morphic-mt.263.mcz
==================== Summary ====================
Name: ToolBuilder-Morphic-mt.263 Author: mt Time: 28 July 2020, 10:00:57.682779 am UUID: fecabf05-7969-5f4f-8a7a-c0a2fbf874b8 Ancestors: ToolBuilder-Morphic-pre.262
In tree widgets, fixes refresh for nodes w/o parents (aka. top nodes or roots). See ObjectExplorerWrapper for a similar strategy.
=============== Diff against ToolBuilder-Morphic-pre.262 ===============
Item was changed: ----- Method: PluggableTreeItemNode>>refresh (in category 'as yet unclassified') ----- refresh + self parent ifNil: [^ self]. self setItem: (self parent contents at: self index ifAbsent: [self error: 'No support for changed child count yet!!']) item.!