fix unknown tree error on build4h transformer
fix unknown tree error on build4h transformer

parkouss/treeherder,adusca/treeherder,moijes12/treeherder,avih/treeherder,sylvestre/treeherder,parkouss/treeherder,akhileshpillai/treeherder,sylvestre/treeherder,rail/treeherder,kapy2010/treeherder,rail/treeherder,akhileshpillai/treeherder,tojonmz/treeherder,moijes12/treeherder,tojonmz/treeherder,avih/treeherder,jgraham/treeherder,akhileshpillai/treeherder,kapy2010/treeherder,sylvestre/treeherder,akhileshpillai/treeherder,moijes12/treeherder,deathping1994/treeherder,KWierso/treeherder,adusca/treeherder,tojon/treeherder,edmorley/treeherder,edmorley/treeherder,akhileshpillai/treeherder,jgraham/treeherder,glenn124f/treeherder,vaishalitekale/treeherder,jgraham/treeherder,KWierso/treeherder,avih/treeherder,deathping1994/treeherder,deathping1994/treeherder,avih/treeherder,parkouss/treeherder,vaishalitekale/treeherder,adusca/treeherder,gbrmachado/treeherder,edmorley/treeherder,rail/treeherder,tojonmz/treeherder,wlach/treeherder,moijes12/treeherder,deathping1994/treeherder,KWierso/treeherder,jgraham/treeherder,deathping1994/treeherder,glenn124f/treeherder,glenn124f/treeherder,wlach/treeherder,tojonmz/treeherder,tojon/treeherder,adusca/treeherder,tojon/treeherder,parkouss/treeherder,wlach/treeherder,rail/treeherder,gbrmachado/treeherder,vaishalitekale/treeherder,adusca/treeherder,sylvestre/treeherder,jgraham/treeherder,KWierso/treeherder,avih/treeherder,parkouss/treeherder,gbrmachado/treeherder,tojonmz/treeherder,sylvestre/treeherder,rail/treeherder,tojon/treeherder,moijes12/treeherder,parkouss/treeherder,gbrmachado/treeherder,adusca/treeherder,wlach/treeherder,kapy2010/treeherder,moijes12/treeherder,sylvestre/treeherder,vaishalitekale/treeherder,glenn124f/treeherder,tojonmz/treeherder,rail/treeherder,glenn124f/treeherder,kapy2010/treeherder,wlach/treeherder,jgraham/treeherder,kapy2010/treeherder,avih/treeherder,deathping1994/treeherder,akhileshpillai/treeherder,edmorley/treeherder,glenn124f/treeherder,vaishalitekale/treeherder,gbrmachado/treeherder,gbrmachado/treeherder,vaishalitekale/treeherder,wlach/treeherder