- Fix a problem in TTree::SetBranchStatus

  When the status of a branch (A) in a TClonesArray was changed the
  corresponding LeafCount() was activated independently of the status flag
  specified for branch A. The TClonesArray branchcount was always read
  even when all the branches had been deactivated.
  (Thanks Manuel Sanchez for reporting)


git-svn-id: http://root.cern.ch/svn/root/trunk@90 27541ba8-7e3a-0410-8455-c3a389f83636