fix #29 status removed when membership expire

src/data_handler.ts

@@ -283,7 +283,7 @@ export class DataHandler {
     for (const membershipRemoved of newData.membershipRemoved) {
       const { index, event } = membershipRemoved;
       const identity = await this.getIdtyByIndexOrFail(ctx, index);
-      identity.status = IdentityStatus.Removed;
+      identity.status = IdentityStatus.NotMember;
       identity.isMember = false;
       identity.lastChangeOn = event.block.height;