Troubles when svn copying and repository isn't behind port 80

My repo is http://xxmasl2:81/test/trunk

When trying to set a tag (copy) on my current sources to :

http://xxmasl2:81/test/tags/some tag name

I get :
Error PROPFIND request failed on '/test''
Error PROPFIND of '/test'; 301 Moved Permanently (http://xxmasl2:81)

I though at first tortoise was in fact removing somehow the :81, however
this does not seem the case as I get apache's log message in the right place
(the one servicing port 81)

This is the relevant line I noticed in the log file :

171.21.117.98 - - [01/Mar/2006:20:15:51 +0100] "PROPFIND /test HTTP/1.1" 301
321 "-" "SVN/1.3.0 (r17949) neon/0.25.4"
171.21.117.98 - - [01/Mar/2006:20:18:55 +0100] "GET /test/ HTTP/1.1" 200 339
"-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0...

As I am also the master of the website on port 80 and that my users are
pretty nice, I dared to move this repository to the apache server servicing
port 80.

And now the copy/branch worked flawlessly ! :

171.21.117.98 - - [01/Mar/2006:20:12:41 +0100] "PROPFIND /test HTTP/1.1" 207
375 "-" "SVN/1.3.0 (r17949) neon/0.25.4"

So the only difference between the two is the different port :81

Can anybody comment on this ?

Searching google with "PROPFIND 301" I get lots of references to subversion
and tortoiseSVN, with only very little other references, although all of
them DAV related.

I realise TortoiseSVN dev list might not be the best place to send this, as
it could be more of an Apache 2 limitation.
Should I send this to a subversion list too ?

Ernest.
Received on Wed Mar 1 21:14:34 2006