[STREAM-990] Store a copy of pendingSessions in the demo app so freezing them doesn't affect the SDK using and mutating them

Author: hjon

changelog.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 * [STREAM-978](https://inindca.atlassian.net/browse/STREAM-978) - When the RTCPeerConnection is in a 'failed' state, clean up the session. Filter out voicemail participants from conversation update events. Fix potential TypeError when fetching conversations.
 * [STREAM-987](https://inindca.atlassian.net/browse/STREAM-987) - Demo app: Memoize conversations so they don't change every render when nothing has changed
+* [STREAM-990](https://inindca.atlassian.net/browse/STREAM-990) - Demo app: Store a copy of pendingSessions so freezing them doesn't affect the SDK's usage of those objects
 
 # [v11.3.3](https://github.com/MyPureCloud/genesys-cloud-webrtc-sdk/compare/v11.3.2...v11.3.3)
 #### Changed

react-demo-app/src/hooks/useSdk.ts

@@ -87,7 +87,7 @@ export default function useSdk() {
   }
 
   function handlePendingSession(pendingSession: IPendingSession): void {
-    dispatch(updatePendingSessions(pendingSession));
+    dispatch(updatePendingSessions({ ...pendingSession }));
   }
   // If a pendingSession was cancelled or handled, we can remove it from our state.
   function handleCancelPendingSession(sessionInfo: ISessionIdAndConversationId): void {