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* When closing menus, set_caret_position is called to remove the caret from the menu tree
  which tries to redraw the icon without a caret as the window is still defined and valid
* This happens after clearing the menutaskhandle though, so the redraw can't page in the
  right task
* The redraw then fails badly trying to access memory from the wrong task

Version 5.84. Tagged as 'Wimp-5_84'