bzr move --auto bug

P:\my-repo\my_branch>bzr status

P:\my-repo\my_branch>cd 2

P:\my-repo\my_branch\2>dir
 Volume in drive P is Shared Folders
 Volume Serial Number is 0000-0064

 Directory of P:\my-repo\my_branch\2

29.07.2012  15:56    <DIR>          .
29.07.2012  15:52    <DIR>          ..
29.07.2012  15:56                 3 hello.txt
               1 File(s)              3 bytes
               2 Dir(s)  10 886 758 400 bytes free

P:\my-repo\my_branch\2>mkdir 2

P:\my-repo\my_branch\2>move hello.txt 2\hello.txt

P:\my-repo\my_branch\2>cd 2

P:\my-repo\my_branch\2\2>dir
 Volume in drive P is Shared Folders
 Volume Serial Number is 0000-0064

 Directory of P:\my-repo\my_branch\2\2

29.07.2012  15:57    <DIR>          .
29.07.2012  15:57    <DIR>          ..
29.07.2012  15:56                 3 hello.txt
               1 File(s)              3 bytes
               2 Dir(s)  10 886 758 400 bytes free

P:\my-repo\my_branch\2\2>cd ..\..\

P:\my-repo\my_branch>bzr status
removed:
  2/hello.txt
unknown:
  2/2/

P:\my-repo\my_branch>bzr move --auto
2 => 2/2
bzr: ERROR: An inconsistent delta was supplied involving u'2', '2-20120729135350-mzh0ymawple3fjlp-1'
reason: This parent is not present.