fix an interaction problem between fusion and pruning
fix an interaction problem between fusion and pruning

cderici/pycket,pycket/pycket,krono/pycket,vishesh/pycket,samth/pycket,pycket/pycket,cderici/pycket,krono/pycket,samth/pycket,krono/pycket,vishesh/pycket,magnusmorton/pycket,samth/pycket,cderici/pycket,pycket/pycket,magnusmorton/pycket,vishesh/pycket,magnusmorton/pycket