Fix flat jacobian bug in transforms
Fix flat jacobian bug in transforms

MichielCottaar/pymc3,superbobry/pymc3,wanderer2/pymc3,dhiapet/PyMC3,MichielCottaar/pymc3,evidation-health/pymc3,superbobry/pymc3,wanderer2/pymc3,evidation-health/pymc3,dhiapet/PyMC3