"svn diff local_absolutepath" from inside a local working copy is broken

"svn diff local_absolutepath" from inside a local working copy is broken

See the following thread.

http://svn.haxx.se/dev/archive-2011-02/0893.shtml


% svnadmin create r1
% svnadmin create r2
% svn co -q file://`pwd`/r1 wc1
% svn co -q file://`pwd`/r2 wc2

% ls -d *[12]
r1  r2  wc1  wc2
% touch wc2/iota
% $svn add -q wc2/iota
% cd wc1

% pwd
/tmp/svn/wc1
% $svn di /tmp/svn/wc2/
subversion/svn/diff-cmd.c:367: (apr_err=150000)
subversion/libsvn_client/diff.c:1958: (apr_err=150000)
subversion/libsvn_client/diff.c:1641: (apr_err=150000)
subversion/libsvn_client/revisions.c:103: (apr_err=150000)
svn: E150000: '/tmp/svn/wc1/tmp/svn/wc2' is not under version control
zsh: exit 1     $svn di $(cd ..; pwd)/wc2/

And this works absolutely fine in 1.6


noorul@laptop:~$ cd /tmp
noorul@laptop:/tmp$ svnadmin create r1
noorul@laptop:/tmp$ svnadmin create r2
noorul@laptop:/tmp$ svn co -q file://`pwd`/r1 wc1
noorul@laptop:/tmp$ svn co -q file://`pwd`/r2 wc2

noorul@laptop:/tmp$ touch wc2/iota
noorul@laptop:/tmp$ svn add -q wc2/iota 

noorul@laptop:/tmp$ cd wc1
noorul@laptop:/tmp/wc1$ ls
noorul@laptop:/tmp/wc1$ pwd
/tmp/wc1
noorul@laptop:/tmp/wc1$ svn di /tmp/wc2
Index: /tmp/wc2/iota
===================================================================
noorul@laptop:/tmp/wc1$ svn di /tmp/wc2
Index: /tmp/wc2/iota
===================================================================

Original issue reported by noorul