emacs-29 90fc6b987ad: * lisp/savehist.el (savehist-save): Preserve shared structure

[Eli Zaretskii]

branch: emacs-29
commit 90fc6b987ad8f6531834906749be4d159fc1184f
Author: Aaron L. Zeng <azeng@janestreet.com>
Commit: Eli Zaretskii <eliz@gnu.org>

    * lisp/savehist.el (savehist-save): Preserve shared structure
    
    This avoids ballooning the size of variables that contain
    large text properties, such as the 'yank-handler' installed
    by 'evil-yank-rectangle', which contains a list of lines in
    the string.
    * lisp/savehist.el (savehist-save): Enable 'print-circle'.
    (Bug#62364)
    
    Copyright-paperwork-exempt: yes
---
 lisp/savehist.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/savehist.el b/lisp/savehist.el
index b532668f8a4..ea8968c771b 100644
--- a/lisp/savehist.el
+++ b/lisp/savehist.el
@@ -232,8 +232,9 @@ If AUTO-SAVE is non-nil, compare the saved contents to the 
one last saved,
       savehist-coding-system))
     (run-hooks 'savehist-save-hook)
     (let ((print-length nil)
-         (print-level nil)
-         (print-quoted t))
+          (print-level nil)
+          (print-quoted t)
+          (print-circle t))
       ;; Save the minibuffer histories, along with the value of
       ;; savehist-minibuffer-history-variables itself.
       (when savehist-save-minibuffer-history