check group id matches current one before changing the title

program/js/app.js

@@ -6322,6 +6322,8 @@ function rcube_webmail()
     else {
       $(this.treelist.get_item(key)).children().first().html(prop.name);
       this.env.contactfolders[key].name = this.env.contactgroups[key].name = prop.name;
+
+      if (prop.id == this.env.group)
         this.set_group_prop(prop);
     }