Search bbdb fails with "let: Invalid function: (bbdb-records)"

["Adam Sjøgren" <asjo@koldfront.dk>]

Recently, when I go M-x bbdb and type in a string to search for, Emacs
has started saying:

    Invalid function: (bbdb-records)

instead of showing the results.

As far as I can tell, the problem is in the "bbdb-search"-line in bbdb:

    (defun bbdb (string elidep)
      "Display all entries in the BBDB matching the regexp STRING
    in either the name(s), company, network address, or notes."
      (interactive
       (list (bbdb-search-prompt "Search records %m regexp: ")
             current-prefix-arg))
      (let* ((bbdb-display-layout (bbdb-grovel-elide-arg elidep))
             (notes (cons '* string))
             (records
              (bbdb-search (bbdb-records) string string string notes
                           nil)))
        (if records
            (bbdb-display-records records)
          ;; we could use error here, but it's not really an error.
          (message "No records matching '%s'" string))))

from bbdb-com.el.

I've tried guessing on and performing random changes, but haven't found
anything that works.

Any ideas?

This is using GNU Emacs 27.0.50 (build 6, x86_64-pc-linux-gnu, GTK+
Version 3.22.30) of 2018-05-29 built from git, and bbdb 2.36-4.1 as
packaged in Debian unstable.


  Best regards,

    Adam

-- 
 "En nordmand vælter sin Grand Marnier i Lucca"               Adam Sjøgren
                                                         asjo@koldfront.dk