Status in ignored directory triggers "is not under version control" error

Hello,

I have a directory dir1/dir2 in my SVN working copy that has depth=empty
set, e.g. after "svn up --set-depth empty". Someone else deletes a file
in that ignored directory. Now I do a "svn st -u" in my working copy
and get an error:

svn: 'dir1/dir2/file1' is not under version control

What is the reason of the error? What can I do to get rid of the error?
  I thought directory dir1/dir2 is ignored, why does SVN care about a
file in that directory? Is this a known bug?

I use SVN version 1.6.15 (r1038135). Here is a script to show the error:

----- Script Start -----
#! /bin/sh

### inuvc.sh - Script to show the "is not under version control" error
### message that is seen if a resource in an empty
### directory is removed.

repoRoot="`pwd`/repo"
repoUrl="file://$repoRoot"
wcRoot="wc"

startDir=`pwd`

### Remove old repository and working copy.
if [ -d $repoRoot ]; then rm -rf $repoRoot; fi
if [ -d $wcRoot ]; then rm -rf $wcRoot; fi

### Create new repository.
svnadmin create $repoRoot

### Create working copy and add some data.
svn co $repoUrl $wcRoot
cd $wcRoot
svn mkdir dir1
svn mkdir dir1/dir2
touch dir1/dir2/file1
svn add dir1/dir2/file1
svn ci -m "Created some data."

### Switch dir2 to empty.
svn up --set-depth empty dir1/dir2

### Remove the file.
svn rm -m "Removed the file." $repoUrl/dir1/dir2/file1

### Do a status. This triggers the error:
### svn: 'dir1/dir2/file1' is not under version control
svn st -u
----- Script End -----

Thanks,
Holger

-- 
Holger Schmidt
Lead Design Engineer
Methodology and Design Automation
Zentrum Mikroelektronik Dresden AG
Grenzstraße 28, 01109 Dresden, Germany
Phone: +49.351.8822.9 0 3
Holger.Schmidt_at_zmdi.com
www.zmdi.com
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