message: Space panel fix aria-expanded being set to false on nodes without children
diff: @@ -270,8 +270,10 @@ export class SpaceItem extends React.PureComponent<IItemProps, IItemState> {
  ? StaticNotificationState.forSymbol("!", NotificationColor.Red)
  : SpaceStore.instance.getNotificationState(space.roomId);
  + const hasChildren = this.state.childSpaces?.length;
  +
  let childItems;
  - if (this.state.childSpaces?.length && !collapsed) {
  + if (hasChildren && !collapsed) {
  childItems = <SpaceTreeLevel
  spaces={this.state.childSpaces}
  activeSpaces={activeSpaces}
  @@ -280,7 +282,7 @@ export class SpaceItem extends React.PureComponent<IItemProps, IItemState> {
  />;
  }
  - const toggleCollapseButton = this.state.childSpaces?.length ?
  + const toggleCollapseButton = hasChildren ?
  <AccessibleButton
  className="mx_SpaceButton_toggleCollapse"
  onClick={this.toggleCollapse}
  @@ -289,7 +291,13 @@ export class SpaceItem extends React.PureComponent<IItemProps, IItemState> {
  /> : null;
  return (
  - <li {...otherProps} className={itemClasses} ref={innerRef} aria-expanded={!collapsed} role="treeitem">
  + <li
  + {...otherProps}
  + className={itemClasses}
  + ref={innerRef}
  + aria-expanded={hasChildren ? !collapsed : undefined}
  + role="treeitem"
  + >
  <SpaceButton
  space={space}
  className={isInvite ? "mx_SpaceButton_invite" : undefined}
  