Org mode version 9.7-pre (9.7-pre-n/a-gb0c3c9); Infinite loop in org-update-statistics-cookies when org-hierarchical-todo-statistics nil

[No Wayman]

(elpaca-test
 :interactive t
 :init
 (elpaca org
   (setq org-hierarchical-todo-statistics nil)
   (with-current-buffer (get-buffer-create "*org-bug*")
     (insert "* TODO test [/]\n")
     (insert "** TODO Loop Infinitely")
     (goto-char (point-min))
     (re-search-forward "/" nil t)
     (org-mode)
     (switch-to-buffer (current-buffer)))))

1. toggle-debug-on-quit
2. With point on the statistics cookie in the first headline, 
invoke org-update-statistics-cookies twice. 
3. Observer an infinite loop.