fixes #2599

tests/generics/mbind_bracket.nim

@@ -0,0 +1,17 @@
+
+import tables
+
+type
+  UUIDObject* = ref object
+    uuid: string
+
+  Registry*[T] = ref object
+    objects: Table[string, T]
+
+proc newRegistry*[T](): Registry[T] =
+  result = Registry[T]()
+  result.objects = initTable[string, T](128)
+
+proc register*[T](self: Registry[T], obj: T) =
+  self.objects[obj.uuid] = obj
+