Change in behavior for cp in fileutils-4.1.1

[Vin Shelton]

Hello,
    In fileutils-4.1, if a file is listed twice in the source list, cp
copies the file twice, overwriting the first copy.  In
fileutils-4.1.1, cp generates an error, even if the -f flag has been
specified:

in fileutils-4.1.1:
  $ touch baz
  $ mkdir blurfl
  $ /usr/local/bin/cp --version
  cp (fileutils) 4.1.1
  Written by Torbjorn Granlund, David MacKenzie, and Jim Meyering.

  Copyright (C) 2001 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  $ /usr/local/bin/cp baz baz blurfl
  /usr/local/bin/cp: will not overwrite just-created `blurfl/baz' with `baz'
  $ /usr/local/bin/cp -f baz baz blurfl
  /usr/local/bin/cp: will not overwrite just-created `blurfl/baz' with `baz'

in fileutils-4.1:
  $ /bin/cp --version
  cp (fileutils) 4.1
  Written by Torbjorn Granlund, David MacKenzie, and Jim Meyering.

  Copyright (C) 2001 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  $ /bin/cp baz baz blurfl
  $ echo $?
  0

I did not find this change mentioned in the NEWS file.  This change
will likely break some scripts and makefiles which utilize the old
'feature'; I discovered it when building the XEmacs packages
hierarchy, which contains makefiles which (admittedly sloppily) use
macros to supply overlapping lists of source files for cp to copy.

Regards,
  Vin Shelton