Update multisession variables when editing the values

* lisp/emacs-lisp/multisession.el (multisession-edit-value):
Update multisession variables when editing the values (bug#53361).

diff --git a/lisp/emacs-lisp/multisession.el b/lisp/emacs-lisp/multisession.el
index e6a2424c5188118efc3e4e1aa3a5e875df6b5ef8..4a293796a8309d7c7760dacf5e19f73d1e79d9ef 100644 (file)
--- a/lisp/emacs-lisp/multisession.el
+++ b/lisp/emacs-lisp/multisession.el
@@ -434,10 +434,16 @@ storage method to list."
                multisession-edit-mode)
   (unless id
     (error "No value on the current line"))
-  (let* ((object (make-multisession
-                  :package (car id)
-                  :key (cdr id)
-                  :storage multisession-storage))
+  (let* ((object (or
+                  ;; If the multisession variable already exists, use
+                  ;; it (so that we update it).
+                  (and (boundp (intern-soft (cdr id)))
+                       (symbol-value (intern (cdr id))))
+                  ;; Create a new object.
+                  (make-multisession
+                   :package (car id)
+                   :key (cdr id)
+                   :storage multisession-storage)))
          (value (multisession-value object)))
     (setf (multisession-value object)
           (car (read-from-string