Bug Report: Restoring deleted directories does not work from Copy dialog

Dear TortoiseSVN team,

I am currently writing a TortoiseSVN guide and discovered a bug while
documenting the necessary steps to restore a deleted branch as documented in
the SVN book:
http://svnbook.red-bean.com/en/1.4/svn-book.html#svn.branchmerge.commonuses.resurrect

The command-line interface obviously works:
svn copy -r 7 file:///C:/SVNRepository/branches/release-1.0-bugfix-02file:///C:/SVNRepository/branches/release-
1.0-bugfix-02

So does the Repository Browser / "Copy to..." action (see attachment).

But when I try to do the same directly from the Log with "Create tag from
revision" I cannot use the same URL as target to remotely restore the
deleted branch.
Error message:
"Can't copy file:///C:/SVNRepository/branches/release-1.0-bugfix-02 to
file:///C:/SVNRepository/branches/release-1.0-bugfix-02"

When I use a different target URL, the copy works, but not as a restore
(which should be at the same URL).

Keep up the good work,
René

TortoiseSVN 1.4.7, Build 11792 - 32 Bit, SVN 1.4.6, Windows XP SP2

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