I do not remember any such promise. When I was going through the list of practical things that apply to the citizens that SNP Members are supposed to represent, what did we hear? Wow! They do not care; what they are interested in is devolution and political power for themselves, not the interests of their own constituents.
Just as important are the areas where we do not need to keep common approaches in the future. We do not expect that we will need to maintain a framework in every single area the EU has mandated. We can ensure that our common approaches are better suited to the UK and our devolution settlements. The Bill therefore provides a mechanism to release policy areas where no frameworks are needed.