[Bug-tar] Can't get --owner/--group to work when extracting (GNU tar 1.20)

[Amit Dor-Shifer]

amit0 ~ # tar --version
tar (GNU tar) 1.20

I read in the manpage:
<QUOTE>
       --owner USER
              change owner of extraced files to USER
<QUOTE/>

Nevertheless I can't get --owner and --group to work when extracting an
archive. Files in archive are owned by root:


amit0 ~ # mkdir /tmp/source
amit0 ~ # touch /tmp/source/file
amit0 ~ # find /tmp/source/ -ls
235609346    0 drwxr-xr-x   2 root     root           17 Jul 30 10:57
/tmp/source/
235609347    0 -rw-r--r--   1 root     root            0 Jul 30 10:57
/tmp/source/file
amit0 ~ # tar czf tar.tar.gz -C /tmp source
amit0 ~ # tar tvf tar.tar.gz
drwxr-xr-x root/root         0 2009-07-30 10:57 source/
-rw-r--r-- root/root         0 2009-07-30 10:57 source/file
amit0 ~ # rm -fr /tmp/dest/*
amit0 ~ # tar xzf tar.tar.gz --owner amitds --group amitds -C /tmp/dest/
amit0 ~ # find /tmp/dest/ -ls
269537327    0 drwxrwxr-x   3 root     root           19 Jul 30 11:01
/tmp/dest/
302673585    0 drwxr-xr-x   2 root     root           17 Jul 30 10:57
/tmp/dest/source
302673586    0 -rw-r--r--   1 root     root            0 Jul 30 10:57
/tmp/dest/source/file
amit0 ~ # id amitds
uid=1014(amitds) gid=1022(amitds) groups=1022(amitds)

a/m options do seem to work when archiving:

amit0 ~ # chown -R root:root /tmp/source/
amit0 ~ # tar czf tar.tar.gz -C /tmp source --owner amitds --group amitds
amit0 ~ # tar tvf tar.tar.gz
drwxr-xr-x amitds/amitds     0 2009-07-30 10:57 source/
-rw-r--r-- amitds/amitds     0 2009-07-30 10:57 source/file

But then I don't need to apply those options upon extraction.

Please advise. Is there a method of applying ownership on-extraction? Is
the manpage incorrect?

Amit