creating patch of moved file fails

Hi,

With the latest version 1.6.3, creating a patchfile of a working copy
that contains moved/renamed files doesn't work as before anymore: only
the deletion of the move is included in the patchfile, but not the add
of the new file.

$ svnadmin create testrepo
$ svn co file:///testrepo testwc
$ echo test > testwc\file.txt
$ svn add testwc\file.txt
$ svn ci testwc -m ""
$ svn mv testwc\file.txt testwc\file2.txt
$ svn diff testwc > patch.txt

now patch.txt only contains the deletion of file.txt, but not the add of
file2.txt.

In subversion/libsvn_wc/diff.c, line 621:
     default:
       SVN_ERR(svn_wc_text_modified_p(&modified, path, FALSE,
                                      adm_access, pool));

that call to svn_wc_text_modified_p() returns false in the 'modified'
variable, which then leads to no diff for files added with history.
Not sure whether svn_wc_text_modified_p should return true of whether
the diff should also check for added-with-history status though.

Stefan

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