org-map-entries: Fix org-agenda-prepare-buffers call

* lisp/org.el (org-map-entries): Check that buffer-file-name is non-nil
  before passing to org-agenda-prepare-buffers.

This is a backport of commit 44c8cd7136e3fcd1e6bfa08895cac437b7a691fa
from upstream org-mode. Addresses bug #23365.

1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/org/org.el b/lisp/org/org.el
index 231daa9a6a7..61bcb451d70 100644
--- a/lisp/org/org.el
+++ b/lisp/org/org.el
@@ -15069,7 +15069,7 @@ a *different* entry, you cannot use these techniques."
           (if (not scope)
               (progn
                 (org-agenda-prepare-buffers
-                 (list (buffer-file-name (current-buffer))))
+                 (and buffer-file-name (list buffer-file-name)))
                 (setq res (org-scan-tags func matcher todo-only start-level)))
             ;; Get the right scope
             (cond
@@ -15081,7 +15081,7 @@ a *different* entry, you cannot use these techniques."
               (setq scope (org-agenda-files t))
               (setq scope (org-add-archive-files scope)))
              ((eq scope 'file)
-              (setq scope (list (buffer-file-name))))
+              (setq scope (and buffer-file-name (list buffer-file-name))))
              ((eq scope 'file-with-archives)
               (setq scope (org-add-archive-files (list (buffer-file-name))))))
             (org-agenda-prepare-buffers scope)