structure: IndexedList: fix an assert which should be stricter
structure: IndexedList: fix an assert which should be stricter


LazyZhu/badvpn,tempbottle/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,linfengfeiye/badvpn,binondord/badvpn,chrisballinger/badvpn,binondord/badvpn,tempbottle/badvpn,LazyZhu/badvpn,tempbottle/badvpn,LazyZhu/badvpn,Git-Host/badvpn,Git-Host/badvpn,binondord/badvpn,LazyZhu/badvpn,chrisballinger/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,PowerOlive/badvpn,binondord/badvpn,chrisballinger/badvpn,tempbottle/badvpn,chrisballinger/badvpn,linfengfeiye/badvpn,tempbottle/badvpn,Git-Host/badvpn,PowerOlive/badvpn,linfengfeiye/badvpn,PowerOlive/badvpn,binondord/badvpn,PowerOlive/badvpn,LazyZhu/badvpn,PowerOlive/badvpn