Fix problems with line-number updates in Follow mode

* src/xdisp.c (redisplay_window): If forced window-start requires
to move a window's point, and the window is under relative
line-number display, force another round of redisplay to update
the relative line numbers.  This fixes follow-mode "redisplay" of
its window group.

* lisp/frame.el: Add display-line-numbers to the list of variables
that should trigger redisplay of the current buffer.

1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/frame.el b/lisp/frame.el
index b7a55169281..8f51afa2a9a 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -2434,6 +2434,7 @@ See also `toggle-frame-maximized'."
         line-prefix
         wrap-prefix
         truncate-lines
+        display-line-numbers
         bidi-paragraph-direction
         bidi-display-reordering))