counsel-describe-face errors when point is on a face

[Wilfred]

If point is on a defface form, then counsel-describe-face errors with:

Debugger entered--Lisp error: (wrong-type-argument stringp hexl-ascii-region)
  regexp-quote(hexl-ascii-region)
  (let ((re (regexp-quote preselect))) (cl-find-if (function (lambda (x) (string-match re x))) coll))
  (or (and require-match (not (eq collection (quote internal-complete-buffer)))) dynamic-collection (let ((re (regexp-quote preselect))) (cl-find-if (function (lambda (x) (string-match re x))) coll)))

The error seems to be this call to regexp-quote in ivy--reset-state:

      (when preselect
        (unless (or (and require-match
                         (not (eq collection 'internal-complete-buffer)))
                    dynamic-collection
                    (let ((re (regexp-quote preselect)))
                      (cl-find-if (lambda (x) (string-match re x))
                                  coll)))
          (setq coll (cons preselect coll))))

I'm not sure how a symbol ended up in the ivy state struct in the first place. I think the code is expecting strings.

I'm on Emacs 25.1.

[abo-abo]

Thanks.