Update TTree::SetDirectory to allow update the BranchRef when needed. This fixes "http://root.cern.ch/phpBB2/viewtopic.php?t=10283"
Update TTree::SetDirectory to allow update the BranchRef when needed.
This fixes "http://root.cern.ch/phpBB2/viewtopic.php?t=10283"


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@33313 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root