bug#27274: 26.0.50; Vertical movement failure with toggle-truncate-lines

[Eli Zaretskii]

> From: "Gian Uberto Lauri" <saint@eng.it>
> Date: Wed, 7 Jun 2017 12:49:21 +0200
> 
> In an emacs instance started with emacs -Q load a file containing the
> attached file.
> 
> give the command M-x toggle-truncate-lines so that truncatinf is ON.
> 
> C-u 400 C-f
> 
> When the C-n command is issued, the cursor does not remain in the same column.

I see this in an Emacs built on May 17, like yours, but not in Emacs
built from the current master HEAD.  So it seems that this problem was
already fixed, and you should resync with the master branch.

Thanks.