Table: Fix nested table bug (#105133)

chore: remove expandedKey index for key rerendering

packages/grafana-ui/src/components/Table/TableRT/RowsList.tsx

@@ -422,9 +422,6 @@ export const RowsList = (props: RowsListProps) => {
     }
   };
 
-  // Key the virtualizer for expanded rows
-  const expandedKey = Object.keys(tableState.expanded).join('|');
-
   // It's a hack for text wrapping.
   // VariableSizeList component didn't know that we manually set row height.
   // So we need to reset the list when the rows high changes.
@@ -437,8 +434,7 @@ export const RowsList = (props: RowsListProps) => {
   return (
     <CustomScrollbar onScroll={handleScroll} hideHorizontalTrack={true} scrollTop={scrollTop}>
       <VariableSizeList
-        // This component needs an unmount/remount when row height, page changes, or expanded rows change
-        key={`${rowHeight}${pageIndex}${expandedKey}`}
+        key={`${rowHeight}${pageIndex}`}
         height={listHeight}
         itemCount={itemCount}
         itemSize={getItemSize}