Hudson 1.318
Hudson Subversion Tagging Plug-in 1.10

SVN repository on https protected by login / password.
The build is performed on a slave, but, the master build successfully some
projects on the same repository.

Steps to reproduce:
1. perform a build
2. go to the build screen
3. click on the tagBuild menu item
4. leave the default tag URL (doesn't matter) and click on the tag button

Expected result:
1. the build is tagged
2. the tagBuild screen displays the existing tag

Obtained result:
1. the build is not tagged

Other infos:
No message (neither error nor info) is displayed on the tagBuild screen.
Nothing is produced in the logs.

Sometimes, after a restart, when this is the first time the tagging is called,
this log appears:
"Tagging in progress" (roughly translated), and then nothing

Logger on "hudson" on the "finest" level doesn't record any activity related to
the tag-svn plugin.