ahs-change-range no longer works after updating to lastest melpa

[DirtYiCE]

After updating from 20210108.1841 to 20210715.1416 I've noticed that the default range was switched from whole buffer to display area. But what's worse that after using ahs-change-range to switch to a different range, ahs stops working: whatever was highlighted stays highlighted, even if I move my cursor around.

I've reproduced it with this tiny config:

(custom-set-variables
 '(package-archives
   '(("gnu" . "http://elpa.gnu.org/packages/")
     ("melpa-stable" . "http://stable.melpa.org/packages/")
     ("melpa" . "https://melpa.org/packages/"))))

; auto-highlight bindings
(setq-default auto-highlight-symbol-mode-map
              (let ((map (make-sparse-keymap)))
                (define-key map (kbd "M-<up>"     ) 'ahs-backward            )
                (define-key map (kbd "ESC <up>"   ) 'ahs-backward            )
                (define-key map (kbd "M-<down>"   ) 'ahs-forward             )
                (define-key map (kbd "ESC <down>" ) 'ahs-forward             )
                (define-key map (kbd "M-S-<up>"   ) 'ahs-backward-definition )
                (define-key map (kbd "M-S-<down>" ) 'ahs-forward-definition  )
                (define-key map (kbd "M--"        ) 'ahs-back-to-start       )
                (define-key map (kbd "C-x C-'"    ) 'ahs-change-range        )
                (define-key map (kbd "C-x C-a"    ) 'ahs-edit-mode           )
                map))
(global-auto-highlight-symbol-mode 1)

After typing C-x C-', the highlight stops updating.
Using Emacs 27.2 on Linux.

[dsedivec]

As far as I can see, ahs-init is only called when the mode is turned on, and ahs-init puts ahs-start-timer in post-command-hook and after-change-functions.

However, ahs-clear is called when disabling the mode or from ahs-change-range, and ahs-clear removes ahs-start-timer from both post-command-hook and after-change-functions.

Maybe ahs-change-range wants to call something other than ahs-clear? I can't immediately see why it needs to call ahs-clear.