tar-1.13.25 overwrites symlinks to directories when extracting

[Andrew Nesbit]

Okay, say I have a tar file containing the following:

address@hidden:~$ tar tvf testtar.tar 
drwxr-xr-x andrew/andrew     0 2002-04-07 14:21 opt/
-rw-r--r-- andrew/andrew    23 2002-04-07 14:21 opt/testfile

I have $HOME/opt symlinked to $HOME/usr/opt/ like this:

address@hidden:~$ ls -la opt
lrwxrwxrwx    1 andrew   andrew          7 Apr  7 17:17 opt -> usr/opt

When I extract the contents of testtar.tar from $HOME, instead of
having testfile getting put in $HOME/usr/opt/ (which is what tar-1.13
does, and what one would normally expect), the symlink gets deleted, a
new $HOME/opt/ directory gets created, and the contents of testtar.tar
get put into there.

-Andrew