BarrelList.insert raises IndexError: list index out of range

BarrelList.insert raises IndexError: list index out of range: a task in repo2rlenv-swe-smith (Harbor dataset). BarrelList.insert unconditionally accesses self.lists 1 , but when the internal list-of-lists has fewer than two sublists (e.g. immediately after construction), self.lists 1 does not…