Update OperationsQueueManager.cs (#147)

change GetChangedEntitiesInScope to use entityEntry.Metadata.Name instead of CLR Type for proxy

Author: RaoulHolzer

src/CommunityToolkit.Datasync.Client/Offline/OperationsQueue/OperationsQueueManager.cs

@@ -69,7 +69,7 @@ internal OperationsQueueManager(OfflineDbContext context)
     internal List<EntityEntry> GetChangedEntitiesInScope()
         => ChangeTracker.Entries()
             .Where(e => e.State is EntityState.Added or EntityState.Modified or EntityState.Deleted)
-            .Where(e => this._entityMap.ContainsKey(e.Entity.GetType().FullName.AsNullableEmptyString()))
+            .Where(e => this._entityMap.ContainsKey(e.Metadata.Name.AsNullableEmptyString()))
             .ToList();
 
     /// <summary>