svn diff, depth not working

Hi,

Running
$ svn diff folder --depth=empty
still produces the diff for all added children as well, even though the
depth was set to empty.

$ mkdir folder
$ echo test > folder/file
$ svn add folder
$ svn diff folder --depth=empty > patch.diff

now the file patch.diff also contains the diff for folder/file.

This with the latest build from the 1.8.x branch.

Stefan

-- 
        ___
   oo  // \\      "De Chelonian Mobile"
  (_,\/ \_/ \     TortoiseSVN
    \ \_/_\_/>    The coolest interface to (Sub)version control
    /_/   \_\     http://tortoisesvn.net