This remember_last_path field is a legacy config field. no longer used.
Remove it from docs and replace it with download_in_external_client field in the Setting a Configuration Value section.

File to edit: https://github.com/stabldev/torrra/blob/main/docs/configuration.md
Doc: https://torrra.readthedocs.io/en/latest/search.html?q=remember_last_path&check_keywords=yes&area=default

Also just remove this line of code,