Make memory-report work with buffer-local unbound vars

* lisp/emacs-lisp/memory-report.el (memory-report--buffer-data):
Protect against buffer-local unbound variables (bug#47057).

diff --git a/lisp/emacs-lisp/memory-report.el b/lisp/emacs-lisp/memory-report.el
index 3d6ca957e63ad2655be0475625816f8fd29dad1c..ecbca280e598856b7e98a2b34a1d33e8b2b45c54 100644 (file)
--- a/lisp/emacs-lisp/memory-report.el
+++ b/lisp/emacs-lisp/memory-report.el
@@ -295,7 +295,7 @@ by counted more than once."
               (- (position-bytes (point-min)))
               (gap-size)))
           (seq-reduce #'+ (mapcar (lambda (elem)
-                                    (if (cdr elem)
+                                    (if (and (consp elem) (cdr elem))
                                         (memory-report--object-size
                                          (make-hash-table :test #'eq)
                                          (cdr elem))