svn up --depth empty breaks working copy

Hi,

Using a build from the 1.5.x branch of svn (built about 4 hours ago) on
Windows Vista, repository on apache 2.0, svn 1.4.6, Windows Vista:

$ svn co https://server/repo/test/trunk testwc
$ cd testwc
$ svn up -r1 file --depth empty
At revision 1.
$ svn up
svn: Checksum mismatch for 'file'; expected: '....', actual: '....'

The same sequence appears to work with file:/// access instead of https.

Stefan

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