Fix C-n/C-p under both 'line-prefix' and 'visual-line-mode'

* lisp/simple.el (line-move-finish): Use
'truncated-partial-width-window-p' to query whether partial-width
lines are actually truncated on display.  (Bug#72420)

(cherry picked from commit 44e3eceeb0ff37aa17f7090d04d2263fb32253a7)

diff --git a/lisp/simple.el b/lisp/simple.el
index d7c545263c91e8d5c891b55346ddd73ddb0dc3ba..e328409c6ae7311b0b9b17648184102dee21d096 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -8071,7 +8071,7 @@ If NOERROR, don't signal an error if we can't move that many lines."
 
        ;; Move to the desired column.
         (if (and line-move-visual
-                 (not (or truncate-lines truncate-partial-width-windows)))
+                 (not (or truncate-lines (truncated-partial-width-window-p))))
             ;; Under line-move-visual, goal-column should be
             ;; interpreted in units of the frame's canonical character
             ;; width, which is exactly what vertical-motion does.