Fix: ship modifiers are not always included in get_modifiers().
Fix: ship modifiers are not always included in get_modifiers().

osmium-org/osmium,wffurr/osmium,copyliu/osmium,wffurr/osmium,copyliu/osmium,wffurr/osmium,wffurr/osmium,copyliu/osmium,osmium-org/osmium,osmium-org/osmium,osmium-org/osmium