Fix empty-band-list crash in get_rate_fixed_charge_at_dt when all bands are filtered by BOOLEAN applicabilitt - #51

Fix empty-band-list crash in get_rate_fixed_charge_at_dt when all bands are filtered by BOOLEAN applicabilitt#51

MeadBarrel wants to merge 2 commits into

mainswitchbox-data/tariff_fetch:mainfrom

49-fix-empty-band-list-crash-in-get_rate_fixed_charge_at_dt-when-all-bands-are-filtered-by-boolean-applicabilityswitchbox-data/tariff_fetch:49-fix-empty-band-list-crash-in-get_rate_fixed_charge_at_dt-when-all-bands-are-filtered-by-boolean-applicabilityCopy head branch name to clipboard