Playing with that xeus-cling notebook, does anyone know how to curb the `error: redefinition of` errors when changing code and rerunning it? This bug is prohib

Playing with that xeus-cling notebook, does anyone know how to curb the `error: redefinition of` errors when changing code and rerunning it? This bug is prohibitive enough I suspect it will be a deal breaker for the majority who want to use this kind of tech.