svnrdump with subpath and revision range has strange Node-paths

With svnrdump, try dumping a revision range of a subpath. I chose two
consequtive revisions:

svnrdump dump \
 http://svn.apache.org/repos/asf/subversion/trunk/contrib/server-side/ \
 -r1232154:1232155 \
 | grep -a ^Node-path

The first dumped revision's Node-paths are all relative to
.../contrib/server-side; the next revision's Node-path is relative to ^/:

[[[
Node-path: fsfsfixer
[...]
Node-path: fsfsfixer/README
Node-path: svncutter/svncutter
* Dumped revision 1232154.
Node-path: subversion/trunk/contrib/server-side/mod_setlocale/mod_setlocale.c
* Dumped revision 1232155.
]]]

I guess this is loosely related to the summary of issue #3641:
"svnsync and svnrdump fail to partially copy a repository"

...but that issue seems to be talking about other things.
http://subversion.tigris.org/issues/show_bug.cgi?id=3641

Anyone have their foot in the svnrdump door already? Should this be a new issue?

~Neels