chore: switch to a fresh anonymous Braze user on logout

Author: gkartalis

src/app/store/AuthModel.ts

@@ -28,6 +28,7 @@ import { LoginManager, LoginTracking } from "react-native-fbsdk-next"
 import Keychain from "react-native-keychain"
 import Keys from "react-native-keys"
 import SiftReactNative from "sift-react-native"
+import { v4 as uuidv4 } from "uuid"
 import { AuthError } from "./AuthError"
 import { GlobalStore, getCurrentEmissionState } from "./GlobalStore"
 import type { GlobalStoreModel } from "./GlobalStoreModel"
@@ -1004,12 +1005,14 @@ export const getAuthModel = (): AuthModel => ({
     GlobalStore.actions.artsyPrefs.pushPromptLogic.resetPushPromptLogic()
     SiftReactNative.unsetUserId()
     SegmentTrackingProvider.identify?.(undefined, { is_temporary_user: 1 })
+    // Switch to a fresh anonymous Braze user so this device no longer receives
+    // push notifications for the logged-out user. The BrazePlugin's identify()
+    // skips changeUser when userId is undefined, so we call it explicitly.
+    Braze.changeUser(uuidv4())
 
-    // Delete from the server and from Firebase before clearing local storage, so both
-    // auth token and push token are still available. Deleting the Firebase token forces
-    // a fresh registration token on the next login (triggering onTokenRefresh).
+    // Delete from the server before clearing local storage, so both
+    // auth token and push token are still available.
     await deleteToken()
-    // await messaging().deleteToken()
 
     await Promise.all([
       Platform.OS === "ios"