* doc/emacs/maintaining.texi (VC Undo): Remove a potentially
inaccurate, outdated, and/or confusing sentence. (Bug#35290)
If you agree, the fileset is reverted. If you don't want @kbd{C-x v
u} to show a diff, set the variable @code{vc-revert-show-diff} to
@code{nil} (you can still view the diff directly with @kbd{C-x v =};
-@pxref{Old Revisions}). Note that @kbd{C-x v u} cannot be reversed
-with the usual undo commands (@pxref{Undo}), so use it with care.
+@pxref{Old Revisions}).
On locking-based version control systems, @kbd{C-x v u} leaves files
unlocked; you must lock again to resume editing. You can also use