[Building Sakai] SVN override sub directory in externals

[Bryan Holladay]

Does anyone know how to override a sub directory in SVN's .externals?
My example is trying to override an OSP tool but keep the rest of the
OSP tools the same:

.externals:

osp https://source.sakaiproject.org/svn/osp/branches/sakai-2.8.x/
osp/portal https://source.sakaiproject.org/svn/msub/longsight.com/osp/sakai-2.8.x/portal-2.8.x_features-backport/


SVN CO doesn't work and I get this error:

Fetching external item into '60_distros_2.8.x/osp/portal'
svn: warning: '60_distros_2.8.x/osp/portal' is already a working copy
for a different URL


SVN UP works and replaces it correctly.


Thanks,
Bryan