[PATCH] Fixing refile cache use for org-goto in indirect buffers.

[Yuchen Pei]

To reprod:
- make sure the org-refile-targets generates a big enough list where
  the refile cache makes a difference
- visit an org file in org-refile-targets
- M-x clone-indirect-buffer-other-window
- C-0 C-c C-w to clear cache
- M-: (org-refile-get-targets)
- org-goto in the original buffer takes no effort
- but, org-goto in the indirect buffer takes time, which is unexpected.

---
 lisp/org-refile.el | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lisp/org-refile.el b/lisp/org-refile.el
index 16cff25bd..7189ef595 100644
--- a/lisp/org-refile.el
+++ b/lisp/org-refile.el
@@ -306,7 +306,10 @@ converted to a headline before refiling."
        (dolist (f files)
          (with-current-buffer (if (bufferp f) f (org-get-agenda-file-buffer f))
            (or
-            (setq tgs (org-refile-cache-get (buffer-file-name) descre))
+            (setq tgs (org-refile-cache-get
+                        (buffer-file-name (when (bufferp f)
+                                            (buffer-base-buffer f)))
+                        descre))
             (progn
               (when (bufferp f)
                 (setq f (buffer-file-name (buffer-base-buffer f))))
-- 
2.37.3