Variable: completion--attempt-state
completion--attempt-state is a buffer-local variable defined in
minibuffer.el.gz.
Documentation
buffer-chars-modified-tick and point at the time of the last TAB.
Source Code
;; Defined in /usr/src/emacs/lisp/minibuffer.el.gz
(defvar-local completion--attempt-state nil
"`buffer-chars-modified-tick' and `point' at the time of the last TAB.")