(rmail-summary-overlay): Make it a permanent local.

diff --git a/lisp/mail/rmailsum.el b/lisp/mail/rmailsum.el
index 57e837c72162a30264777a19741e26dccfb21d6a..b0208a102c0a849c39362ac85f1fbfca806d1cac 100644 (file)
--- a/lisp/mail/rmailsum.el
+++ b/lisp/mail/rmailsum.el
@@ -872,6 +872,7 @@ Commands for sorting the summary:
   '("Next" . rmail-summary-next-all))
 \f
 (defvar rmail-summary-overlay nil)
+(put 'rmail-summary-overlay 'permanent-local t)
 
 (defun rmail-summary-goto-msg (&optional n nowarn skip-rmail)
   (interactive "P")