Fix bug introduced in commit 478
git-svn-id: svn+ssh://labs.libre-entreprise.org/svnroot/larpe@480 3ed937ae-f919-0410-9a43-8e6f19e4ba6e
Fix bug introduced in commit 478
restore lasso_session_index.
git-svn-id: svn+ssh://labs.libre-entreprise.org/svnroot/larpe@480 3ed937ae-f919-0410-9a43-8e6f19e4ba6e