I don't know how you can reconcile the decree from Vienne, for example, without denying it outright.
One sentence it says that all are faithfully to prrofess ONE baptism that regenerates all who are baptized in Christ, and the next sentence describes that very baptism.
It is a closed case. There is no baptism other than that, which regenerates those baptized in Christ. And all the other decrees, though worded in different ways, all support the very same understanding.