Fix an issue reported by Eddy: the function doc would sometimes misidentify...

Fix an issue reported by Eddy: the function doc would sometimes misidentify the function (TObject's copy c'tor was shown twice)


git-svn-id: http://root.cern.ch/svn/root/trunk@26553 27541ba8-7e3a-0410-8455-c3a389f83636