Expanded secondary items are not collapsed on main expandable item closed

[sudheeshde]

Hi, first of all thanks for this awesome library. I have a menu structure in which there are 2 levels of menu items (a > b > c).
Scenario is as follows:
Whenever menu item c is expanded and closed item a, then closed drawer.
And when reopening menu items inside c is still opened and sometimes the menu items in c is misplaced into another sub level of menu item.
How can we collapse all menu items when drawer is closed?