Interface now assumes local_state is stored in the AbstractProblem when required

Author: Jack Dunham

src/iterators.jl

@@ -106,9 +106,9 @@ function increment!(region_iter::RegionIterator)
 end
 
 function compute!(iter::RegionIterator)
-    _, local_state = extract!(iter; region_kwargs(extract!, iter)...)
-    _, local_state = update!(iter, local_state; region_kwargs(update!, iter)...)
-    insert!(iter, local_state; region_kwargs(insert!, iter)...)
+    extract!(iter; region_kwargs(extract!, iter)...)
+    update!(iter; region_kwargs(update!, iter)...)
+    insert!(iter; region_kwargs(insert!, iter)...)
 
     return iter
 end