;Fix eldoc regression bug#42365

85eaa837 · Tassilo Horn · 58bec884 · 85eaa837
Commit 85eaa837 authored Jul 15, 2020 by Tassilo Horn
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lisp/emacs-lisp/eldoc.el lisp/emacs-lisp/eldoc.el +3 -2

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--- a/lisp/emacs-lisp/eldoc.el
+++ b/lisp/emacs-lisp/eldoc.el
@@ -495,8 +495,9 @@ Honor most of `eldoc-echo-area-use-multiline-p'."
                            (substitute-command-keys "\\[eldoc-doc-buffer]")))))))))
              ((= available 1)
               ;; Truncate "brutally." ; FIXME: use `eldoc-prefer-doc-buffer' too?
-               (truncate-string-to-width
+               (with-current-buffer (eldoc-doc-buffer)
-                (buffer-substring (point-min) (line-end-position 1)) width)))))
+                 (truncate-string-to-width
+                  (buffer-substring (point-min) (line-end-position 1)) width))))))
        (when echo-area-message
          (eldoc--message echo-area-message))))))