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<title>Working Copy Design for Svn Obliterate</title>
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<h1 style="text-align: center">Working Copy Design for Svn Obliterate</h1>
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<h2>Table of Contents</h2>
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<h3>A design note re. making 'update' work without deltas.</h3>
<p>When Subversion updates a WC, it normally expects to transfer just
the changes. Since the server in this case doesn't have a copy of the
old version, we need to modify the 'update' mechanism to cope with
that. We also need to consider how the behaviour of this kind of
update (a nonexistent version to/from an existing version) relates to
the behaviour you get if you ask to update a nonexistent version of a
normal Subversion-controlled file to/from an existing version of it.
There are important differences.</p>
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