message: Lock logic negation
diff: @@ -37,7 +37,7 @@ export default function pair ({ publicKey, secretKey }: KeypairType, meta: Keyri
  getMeta: (): KeyringPair$Meta =>
  getMeta(state),
  isLocked: (): boolean =>
  - !!(secretKey && secretKey.length !== 0),
  + (!secretKey || secretKey.length === 0),
  lock: (): void => {
  secretKey = new Uint8Array(0);
  },
  