I20251216-1800
Always update SWT "isExpanded" state for non-leaf TreeItem elements, independently whether GTK state already matches new state or not. Fixes https://github.com/eclipse-platform/eclipse.platform.swt/issues/2887
Always update SWT "isExpanded" state for non-leaf TreeItem elements, independently whether GTK state already matches new state or not. Fixes https://github.com/eclipse-platform/eclipse.platform.swt/issues/2887