Bad migration function for pallet-scheduler

[xlc]

substrate/frame/scheduler/src/lib.rs

Line 627 in e4f9551

origin: system::RawOrigin::Root.into(),

This will discard the stored origin and replace it with root.

[xlc]

Also a number of parachains (I only checked Karura, Acala, Bifrost, Khala) have storage version stored V1 despite the code is clearly using V2. Not exactly sure why it wasn't updated but we also need to update the migration code to ignore current version.