svn copy : inconsistency of WC->URL and URL->URL wrt authz ?

Hello,

My server runs subversion 1.4.2 with Apache/WebDAV, which is configured with an
AuthzSVNAccessFile. Here is an excerpt of the access.authz file :

[test:/]
samuel=rw
[test:/tags]
*=
[test:/tags/samuel]
samuel=rw

And now the point with an example :

$ svn list https://subversion/svn/test/trunk/samuel
private/
$ svn list https://subversion/svn/test/tags
svn: PROPFIND request failed on '/svn/test/tags'
svn: PROPFIND of '/svn/test/tags': 403 Forbidden (https://subversion)
$ svn list https://subversion/svn/test/tags/samuel
$ svn copy https://subversion/svn/test/trunk/samuel
https://subversion/svn/test/tags/samuel/v1
svn: PROPFIND request failed on '/svn/test/tags'
svn: PROPFIND of '/svn/test/tags': 403 Forbidden (https://subversion)
$ svn checkout https://subversion/svn/test/trunk/samuel
A samuel/private
A samuel/private/hello
Révision 21 extraite.
$ svn copy samuel/ https://subversion/svn/test/tags/samuel/v1
Révision 21 propagée.
$ svn list https://subversion/svn/test/tags/samuel
v1/
$

So: why for a URL -> URL copy subversion needs to check the parent directory
(/tags/, which is not allowed), while for a WC -> URL copy it does not need to
? Isn't it an inconsistency ? I would expect the same behaviour as for WC ->
URL, since I explicitely allowed path /tags/samuel/ read-write in the
access.authz.

Regards,

-- 
Samuel Landau
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