message: Fix a bug: Do not collapse/expand panel is the the state is none
diff: @@ -124,6 +124,7 @@ export class Panel extends PanelModel {
  this.koIsExpanded(this.isExpanded);
  }
  private changeExpanded() {
  + if (!this.isCollapsed && !this.isExpanded) return;
  if (this.isCollapsed) {
  this.expand();
  } else {
  