Add missing member variables to EDA_ITEM::operator=

Also don't rebiuld groups that are only on the undo list.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/21064

common/eda_item.cpp

@@ -333,7 +333,9 @@ EDA_ITEM& EDA_ITEM::operator=( const EDA_ITEM& aItem )
     m_structType   = aItem.m_structType;
     m_flags        = aItem.m_flags;
     m_parent       = aItem.m_parent;
+    m_group        = aItem.m_group;
     m_forceVisible = aItem.m_forceVisible;
+    m_isRollover   = aItem.m_isRollover;
 
     SetForcedTransparency( aItem.GetForcedTransparency() );
 

pcbnew/undo_redo.cpp

@@ -533,6 +533,9 @@ void PCB_BASE_EDIT_FRAME::PutDataInPreviousState( PICKED_ITEMS_LIST* aList )
     {
         ITEM_PICKER& wrapper = aList->GetItemWrapper( ii );
 
+        if( wrapper.GetStatus() == UNDO_REDO::DELETED )
+            continue;
+
         BOARD_ITEM* parentGroup = GetBoard()->ResolveItem( wrapper.GetGroupId(), true );
         wrapper.GetItem()->SetParentGroup( dynamic_cast<PCB_GROUP*>( parentGroup ) );