option --suffix does not function when there exists a numbered backup.

[Sergei Guzenkov]

Archlinux i386, Coreutils 7.1-1
option --suffix does not function when there exists a numbered backup.

bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc'
bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc' (backup: `./vimrcmy')
bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc' (backup: `./vimrcmy')
bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc' (backup: `./vimrcmy')
bash-3.2$ cp /etc/vimrc . -S my -v --backup=numbered
`/etc/vimrc' -> `./vimrc' (backup: `./vimrc.~1~')
bash-3.2$ cp /etc/vimrc . -S my -v --backup=numbered
`/etc/vimrc' -> `./vimrc' (backup: `./vimrc.~2~')
bash-3.2$ cp /etc/vimrc . -S my -v --backup=numbered
`/etc/vimrc' -> `./vimrc' (backup: `./vimrc.~3~')
bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc' (backup: `./vimrc.~4~')
bash-3.2$ cp /etc/vimrc . -b -S my -v
`/etc/vimrc' -> `./vimrc' (backup: `./vimrc.~5~')

And if there were no bug, is there some option to combine fixed and
numbered suffix? E.g. file.copy1, file.copy2,...


--
Best regards,

Sergei Guzenkov
“Hire people who are smarter than you and get out of their way.” Howard Schultz