Fixed casting for guids

JasperFx · Feb 6, 2025 · 7f92687 · 7f92687
1 parent 687ec5f
commit 7f92687
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/Marten/Events/Aggregation/CustomProjection.cs b/src/Marten/Events/Aggregation/CustomProjection.cs
@@ -422,7 +422,12 @@ public IAggregateCache<TId, TDoc> CacheFor(Tenant tenant)
 
     public TId IdentityFromEvent(IEvent e)
     {
-        return e.StreamKey.To<TId>() ?? e.StreamId.To<TId>();
+        if (typeof(TId) == typeof(Guid))
+        {
+            return e.StreamId.To<TId>();
+        }
+
+        return e.StreamKey.To<TId>();
     }
 }