add a fix from Gregory in case of a model without nuisance parameters
add a fix from Gregory in case of a model without nuisance parameters


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@40958 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root,dawehner/root