if (m_grouped) {
updateGroupHeaderHeight();
} else {
- // Clear all visible headers
- QMutableHashIterator<KItemListWidget*, KItemListGroupHeader*> it (m_visibleGroups);
+ // Clear all visible headers. Note that the QHashIterator takes a copy of
+ // m_visibleGroups. Therefore, it remains valid even if items are removed
+ // from m_visibleGroups in recycleGroupHeaderForWidget().
+ QHashIterator<KItemListWidget*, KItemListGroupHeader*> it(m_visibleGroups);
while (it.hasNext()) {
it.next();
recycleGroupHeaderForWidget(it.key());