SolutionStored: PlainDescriptor<{
    compute: ElectionProviderMultiPhaseElectionCompute;
    origin: SS58String | undefined;
    prev_ejected: boolean;
}>

A solution was stored with the given compute.

The origin indicates the origin of the solution. If origin is Some(AccountId), the stored solution was submitted in the signed phase by a miner with the AccountId. Otherwise, the solution was stored either during the unsigned phase or by T::ForceOrigin. The bool is true when a previous solution was ejected to make room for this one.