Fix saving contact when registering

Examples/xx-messenger/Package.swift

@@ -135,6 +135,7 @@ let package = Package(
       dependencies: [
         .target(name: "AppCore"),
         .product(name: "ComposableArchitecture", package: "swift-composable-architecture"),
+        .product(name: "XXClient", package: "elixxir-dapps-sdk-swift"),
         .product(name: "XXMessengerClient", package: "elixxir-dapps-sdk-swift"),
         .product(name: "XXModels", package: "client-ios-db"),
       ],

Examples/xx-messenger/Sources/RegisterFeature/RegisterFeature.swift

@@ -2,6 +2,7 @@ import AppCore
 import ComposableArchitecture
 import Foundation
 import XCTestDynamicOverlay
+import XXClient
 import XXMessengerClient
 import XXModels
 
@@ -81,7 +82,11 @@ public let registerReducer = Reducer<RegisterState, RegisterAction, RegisterEnvi
       do {
         let db = try env.db()
         try env.messenger.register(username: username)
-        let contact = env.messenger.e2e()!.getContact()
+        var contact = try env.messenger.e2e.tryGet().getContact()
+        var facts: [Fact] = (try? contact.getFacts()) ?? []
+        facts.removeAll(where: { $0.type == 0 })
+        facts.append(Fact(fact: username, type: 0))
+        try contact.setFacts(facts)
         try db.saveContact(Contact(
           id: try contact.getId(),
           marshaled: contact.data,

Examples/xx-messenger/Tests/RegisterFeatureTests/RegisterFeatureTests.swift

@@ -16,6 +16,7 @@ final class RegisterFeatureTests: XCTestCase {
     let now = Date()
     let mainQueue = DispatchQueue.test
     let bgQueue = DispatchQueue.test
+    var didSetFactsOnContact: [[XXClient.Fact]] = []
     var dbDidSaveContact: [XXModels.Contact] = []
     var messengerDidRegisterUsername: [String] = []
 
@@ -30,6 +31,11 @@ final class RegisterFeatureTests: XCTestCase {
       e2e.getContact.run = {
         var contact = XXClient.Contact.unimplemented("contact-data".data(using: .utf8)!)
         contact.getIdFromContact.run = { _ in "contact-id".data(using: .utf8)! }
+        contact.getFactsFromContact.run = { _ in [] }
+        contact.setFactsOnContact.run = { data, facts in
+          didSetFactsOnContact.append(facts)
+          return data
+        }
         return contact
       }
       return e2e
@@ -57,6 +63,7 @@ final class RegisterFeatureTests: XCTestCase {
     bgQueue.advance()
 
     XCTAssertNoDifference(messengerDidRegisterUsername, ["NewUser"])
+    XCTAssertNoDifference(didSetFactsOnContact, [[Fact(fact: "NewUser", type: 0)]])
     XCTAssertNoDifference(dbDidSaveContact, [
       XXModels.Contact(
         id: "contact-id".data(using: .utf8)!,