fix: handle Union types in BufferTemplate

AayushSabharwal · AayushSabharwal · commit f58b8facaadf · 2025-08-07T13:29:07.000-04:00
diff --git a/src/systems/index_cache.jl b/src/systems/index_cache.jl
@@ -1,5 +1,5 @@
 struct BufferTemplate
-    type::Union{DataType, UnionAll}
+    type::Union{DataType, UnionAll, Union}
     length::Int
 end
 
