You might want to add -o Dir::Etc::sourceparts=\"\" to ensure that sourceparts from the default location won't get used.
... W: Duplicate sources.list entry https://downloads.maemo.nokia.com ./ Packages (/opt/fapman-cache/lists/downloads.maemo.nokia.com_fremantle_ssu_apps_._Packages) W: Duplicate sources.list entry https://downloads.maemo.nokia.com ./ Packages (/opt/fapman-cache/lists/downloads.maemo.nokia.com_fremantle_ssu_mr0_._Packages) W: Duplicate sources.list entry https://downloads.maemo.nokia.com ./ Packages (/opt/fapman-cache/lists/downloads.maemo.nokia.com_fremantle1.2_ovi_._Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle-1.3/free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras_dists_fremantle-1.3_free_binary-armel_Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle-1.3/non-free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras_dists_fremantle-1.3_non-free_binary-armel_Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle/free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras-devel_dists_fremantle_free_binary-armel_Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle/non-free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras-devel_dists_fremantle_non-free_binary-armel_Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle/free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras-testing_dists_fremantle_free_binary-armel_Packages) W: Duplicate sources.list entry http://repository.maemo.org fremantle/non-free Packages (/opt/fapman-cache/lists/repository.maemo.org_extras-testing_dists_fremantle_non-free_binary-armel_Packages) W: You may want to run apt-get update to correct these problems