Fix 'string-edit' when abort-callback is omitted

* lisp/textmodes/string-edit.el (string-edit): Set
'string-edit--abort-callback' even if ABORT-CALLBACK is nil.
(Bug#71406)

(cherry picked from commit bd50c804eca3c15388d4c2d0ad12040c562bddb0)

diff --git a/lisp/textmodes/string-edit.el b/lisp/textmodes/string-edit.el
index 03be426ac256e7353fa242e0f6a077ad7d808d92..cafed5a1e1616500d764297b33434a585926fc4d 100644 (file)
--- a/lisp/textmodes/string-edit.el
+++ b/lisp/textmodes/string-edit.el
@@ -75,8 +75,7 @@ Also see `read-string-from-buffer'."
     (setq buffer-undo-list nil)
     (string-edit-mode)
     (setq-local string-edit--success-callback success-callback)
-    (when abort-callback
-      (setq-local string-edit--abort-callback abort-callback))
+    (setq-local string-edit--abort-callback abort-callback)
     (setq-local header-line-format
                 (substitute-command-keys
                  "Type \\<string-edit-mode-map>\\[string-edit-done] when you've finished editing or \\[string-edit-abort] to abort"))