Fix Reduce Equalise order in offhchain phragmen (#5892)

substrate/frame/staking/src/lib.rs

@@ -2338,6 +2338,9 @@ impl<T: Trait> Module<T> {
 		// candidates.
 		let snapshot_length = <SnapshotValidators<T>>::decode_len()
 			.map_err(|_| Error::<T>::SnapshotUnavailable)?;
+
+		// check the winner length only here and when we know the length of the snapshot validators
+		// length.
 		let desired_winners = Self::validator_count().min(snapshot_length as u32);
 		ensure!(winners.len() as u32 == desired_winners, Error::<T>::PhragmenBogusWinnerCount);