"svn cleanup" doesn't; advice needed

I'm sending this to dev@ in addition to users@, since I've researched
pretty thoroughly and have found a number of other people with this
problem (see IRC logs at http://tinyurl.com/3qts4a for a sampling), and
no useful suggestions from anyone.

The story so far:
  
  C:\CruiseControl>svn --version
  svn, version 1.4.5 (r25188)
     compiled Aug 22 2007, 20:49:04

Running on XP, Service Pack 2.

So somehow I got a wedged wc -- I probably killed a "svn up" process.
No problem, thinks I; I'll just run "svn cleanup".

  C:\CruiseControl\WebClientRelease20080528>svn st -q
  ! L .
  ! L External
    L External\JavaSeRuntimeEnvironment6Update4
    L External\DirectX
    L External\DirectX\Include
    L External\DirectX\Lib
    L External\DirectX\Lib\x64
    L External\DirectX\Lib\x86
  ! L External\VC
    L External\VC\include
    L External\VC\include\msclr
    L External\VC\include\msclr\com
    L External\VC\include\sys
    L External\VC\include\CodeAnalysis
  ! L External\VC\atlmfc
    L External\VC\atlmfc\include
    L External\VC\atlmfc\include\res
    L External\VC\atlmfc\include\l.jpn
    L External\VC\atlmfc\include\l.deu
    L External\VC\atlmfc\include\l.esp
    L External\VC\atlmfc\include\l.kor
    L External\VC\atlmfc\include\l.fra
    L External\VC\atlmfc\include\l.chs
    L External\VC\atlmfc\include\l.ita
    L External\VC\atlmfc\include\l.cht
  ! L External\VC\atlmfc\lib

  C:\CruiseControl\WebClientRelease20080528>svn cleanup
  svn: In directory 'External\VC\atlmfc\lib'
  svn: Error processing command 'modify-wcprop' in 'External\VC\atlmfc\lib'
  svn: 'External\VC\atlmfc\lib\eafxis.lib' is not under version control

Uh oh.

What follows is mostly more of the same:

  C:\CruiseControl\WebClientRelease20080528>svn st -q
  ! L .
  ! L External
  ! L External\VC
  ! L External\VC\atlmfc
  ! L External\VC\atlmfc\lib

  C:\CruiseControl\WebClientRelease20080528>cd external

  C:\CruiseControl\WebClientRelease20080528\External>svn cleanup
  svn: In directory 'VC\atlmfc\lib'
  svn: Error processing command 'modify-wcprop' in 'VC\atlmfc\lib'
  svn: 'VC\atlmfc\lib\eafxis.lib' is not under version control

  C:\CruiseControl\WebClientRelease20080528\External>svn st
  ! L .
  ! L VC
  ! L VC\atlmfc
  ? VC\atlmfc\lib\mfc80.lib
  ? VC\atlmfc\lib\eafxis.pdb
  ? VC\atlmfc\lib\eafxis.lib
  ? VC\atlmfc\lib\mfcm80u.lib
  ? VC\atlmfc\lib\Atl.lib
  ? VC\atlmfc\lib\mfc80d.lib
  ? VC\atlmfc\lib\mfcmifc80.dll
  ? VC\atlmfc\lib\eafxisd.pdb
  ? VC\atlmfc\lib\eafxisd.lib
  ? VC\atlmfc\lib\mfcm80ud.lib
  ? VC\atlmfc\lib\atldload.lib
  ? VC\atlmfc\lib\mfcs80u.pdb
  ? VC\atlmfc\lib\mfcs80u.lib
  ? VC\atlmfc\lib\nafxcw.pdb
  ? VC\atlmfc\lib\nafxis.pdb
  ? VC\atlmfc\lib\mfcs80ud.lib
  ? VC\atlmfc\lib\nafxcwd.pdb
  ? VC\atlmfc\lib\mfcm80.lib
  ? VC\atlmfc\lib\nafxisd.pdb
  ? VC\atlmfc\lib\atlmincrt.pdb
  ? VC\atlmfc\lib\uafxcw.lib
  ? VC\atlmfc\lib\mfcm80d.lib
  ? VC\atlmfc\lib\mfcs80.lib
  ? VC\atlmfc\lib\uafxcwd.pdb
  ? VC\atlmfc\lib\mfc80u.lib
  ? VC\atlmfc\lib\atls.lib
  ? VC\atlmfc\lib\mfcs80d.lib
  ? VC\atlmfc\lib\mfc80ud.lib
  ? VC\atlmfc\lib\atlsd.pdb
  ? VC\atlmfc\lib\mfcdload.lib
  ! L VC\atlmfc\lib

  C:\CruiseControl\WebClientRelease20080528\External>cd vc

  C:\CruiseControl\WebClientRelease20080528\External\VC>svn cleanup
  svn: In directory 'atlmfc\lib'
  svn: Error processing command 'modify-wcprop' in 'atlmfc\lib'
  svn: 'atlmfc\lib\eafxis.lib' is not under version control

  C:\CruiseControl\WebClientRelease20080528\External\VC>svn st
  ! L .
  ! L atlmfc
  ? atlmfc\lib\mfc80.lib
  ? atlmfc\lib\eafxis.pdb
  ? atlmfc\lib\eafxis.lib
  ? atlmfc\lib\mfcm80u.lib
  ? atlmfc\lib\Atl.lib
  ? atlmfc\lib\mfc80d.lib
  ? atlmfc\lib\mfcmifc80.dll
  ? atlmfc\lib\eafxisd.pdb
  ? atlmfc\lib\eafxisd.lib
  ? atlmfc\lib\mfcm80ud.lib
  ? atlmfc\lib\atldload.lib
  ? atlmfc\lib\mfcs80u.pdb
  ? atlmfc\lib\mfcs80u.lib
  ? atlmfc\lib\nafxcw.pdb
  ? atlmfc\lib\nafxis.pdb
  ? atlmfc\lib\mfcs80ud.lib
  ? atlmfc\lib\nafxcwd.pdb
  ? atlmfc\lib\mfcm80.lib
  ? atlmfc\lib\nafxisd.pdb
  ? atlmfc\lib\atlmincrt.pdb
  ? atlmfc\lib\uafxcw.lib
  ? atlmfc\lib\mfcm80d.lib
  ? atlmfc\lib\mfcs80.lib
  ? atlmfc\lib\uafxcwd.pdb
  ? atlmfc\lib\mfc80u.lib
  ? atlmfc\lib\atls.lib
  ? atlmfc\lib\mfcs80d.lib
  ? atlmfc\lib\mfc80ud.lib
  ? atlmfc\lib\atlsd.pdb
  ? atlmfc\lib\mfcdload.lib
  ! L atlmfc\lib

  C:\CruiseControl\WebClientRelease20080528\External\VC>cd atlmfc

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc>svn cleanup
  svn: In directory 'lib'
  svn: Error processing command 'modify-wcprop' in 'lib'
  svn: 'lib\eafxis.lib' is not under version control

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc>svn st
  ! L .
  ? lib\mfc80.lib
  ? lib\eafxis.pdb
  ? lib\eafxis.lib
  ? lib\mfcm80u.lib
  ? lib\Atl.lib
  ? lib\mfc80d.lib
  ? lib\mfcmifc80.dll
  ? lib\eafxisd.pdb
  ? lib\eafxisd.lib
  ? lib\mfcm80ud.lib
  ? lib\atldload.lib
  ? lib\mfcs80u.pdb
  ? lib\mfcs80u.lib
  ? lib\nafxcw.pdb
  ? lib\nafxis.pdb
  ? lib\mfcs80ud.lib
  ? lib\nafxcwd.pdb
  ? lib\mfcm80.lib
  ? lib\nafxisd.pdb
  ? lib\atlmincrt.pdb
  ? lib\uafxcw.lib
  ? lib\mfcm80d.lib
  ? lib\mfcs80.lib
  ? lib\uafxcwd.pdb
  ? lib\mfc80u.lib
  ? lib\atls.lib
  ? lib\mfcs80d.lib
  ? lib\mfc80ud.lib
  ? lib\atlsd.pdb
  ? lib\mfcdload.lib
  ! L lib

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc>cd lib

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc\lib>svn cleanup
  svn: In directory '.'
  svn: Error processing command 'modify-wcprop' in '.'
  svn: 'eafxis.lib' is not under version control

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc\lib>svn st
  ? mfc80.lib
  ? eafxis.pdb
  ? eafxis.lib
  ? mfcm80u.lib
  ? Atl.lib
  ? mfc80d.lib
  ? mfcmifc80.dll
  ? eafxisd.pdb
  ? eafxisd.lib
  ? mfcm80ud.lib
  ? atldload.lib
  ? mfcs80u.pdb
  ? mfcs80u.lib
  ? nafxcw.pdb
  ? nafxis.pdb
  ? mfcs80ud.lib
  ? nafxcwd.pdb
  ? mfcm80.lib
  ? nafxisd.pdb
  ? atlmincrt.pdb
  ? uafxcw.lib
  ? mfcm80d.lib
  ? mfcs80.lib
  ? uafxcwd.pdb
  ? mfc80u.lib
  ? atls.lib
  ? mfcs80d.lib
  ? mfc80ud.lib
  ? atlsd.pdb
  ? mfcdload.lib
  ! L .

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc\lib>svn up
  svn: Working copy '.' locked
  svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)

  C:\CruiseControl\WebClientRelease20080528\External\VC\atlmfc\lib>svn cleanup
  svn: In directory '.'
  svn: Error processing command 'modify-wcprop' in '.'
  svn: 'eafxis.lib' is not under version control

So: I've got a locked wc, but "svn cleanup" won't unlock it. What's the
deal? I cannot reliably reproduce this, so I hesitate to enter an issue
in the issue tracker.

-- 
A DRE voting system is one of the simplest computer
applications you could imagine.  It just adds by one.
        -- Brit Williams, emeritus professor of computer science
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