This bears repeating because actually the vast majority of the time this tool is used to create walls with the same top and bottom. Instead you end up having to set the top and bottom each and every time, when what you are trying to achieve is the same wall.
Why on earth would you want to reset the constraints each and every time you use create similar. This is a long overdue fix of the create similar tool. If this is not going to be "fixed", then could we at least have a "Create Same" tool or an option tick box to enable this.
Just felt it's worth noting something that's clearly broken and annoying a lot of users...