From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: git stash destroys hard links
Date: Tue, 22 May 2012 10:41:32 -0700
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To: Steven Penny <svnpenn@gmail.com>
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In-Reply-To: <CAAXzdLWadNg9d_i8fZTawaxYm3ytcGCT4pzeth=LxrQYEO-3ww@mail.gmail.com> (Steven
 Penny's message of "Mon, 21 May 2012 23:24:01 -0500")
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Steven Penny <svnpenn@gmail.com> writes:

> I dont know if this is even fixable, but I wanted to at least mention it.

I do not think there is anything specific to stash.  Whenever we write out
results of an operation to a file in the working tree, we first unlink(2)
and then creat(2), which essentially breaks hardlinked files and avoids
updating some _other_ paths that share the underlying file with the
updated path.