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Date: Mon, 6 Apr 2015 11:41:41 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Gleb Smirnoff <glebius@FreeBSD.org>
Subject: Re: svn commit: r281129 - head/etc
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On Mon, Apr 06, 2015 at 11:25:53AM +0300, Gleb Smirnoff wrote:

> On Mon, Apr 06, 2015 at 10:16:40AM +0300, Slawa Olhovchenkov wrote:
> S> On Mon, Apr 06, 2015 at 12:10:40AM -0700, Garrett Cooper wrote:
> S> 
> S> > 
> S> > > On Apr 5, 2015, at 23:56, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:
> S> > > 
> S> > >> On Mon, Apr 06, 2015 at 01:32:27AM +0000, Dmitry Marakasov wrote:
> S> > >> 
> S> > >> Author: amdmi3 (ports committer)
> S> > >> Date: Mon Apr  6 01:32:26 2015
> S> > >> New Revision: 281129
> S> > >> URL: https://svnweb.freebsd.org/changeset/base/281129
> S> > >> 
> S> > >> Log:
> S> > >>  Switch russian login class to UTF-8
> S> > > 
> S> > > As discursed before this is may cause data lost.
> S> > 
> S> > Why?
> S> 
> S> Create file in koi8 locale with russian charaters.
> S> Update OS. Now you have utf-8 locale.
> S> Open file in vi.
> S> Save file.
> S> Done. Some data lost.
> S> vi and some other programs (tr and may by other) handle not-utf8 byte secquence in non-safe way.
> 
> Don't save file.

You kidding.
vi may inform you about data lost only postfactum (in case no lines
with koi8 characters currently on screen).