Update mathoptinterface_api.jl

Author: odow

src/Nonlinear/ReverseAD/mathoptinterface_api.jl

@@ -138,10 +138,10 @@ function MOI.initialize(d::NLPEvaluator, requested_features::Vector{Symbol})
     end
     # 10 is hardcoded upper bound to avoid excess memory allocation
     max_chunk = min(max_chunk, 10)
-    max_expr_with_sub_length =
-        maximum(d.subexpression_order; init = max_expr_length) do k
-            return length(d.subexpressions[k].nodes)
-        end
+    max_expr_with_sub_length = max(
+        max_expr_length,
+        maximum(x -> length(x.nodes), d.subexpressions; init = 0),
+    )
     if d.want_hess || want_hess_storage
         d.input_ϵ = zeros(max_chunk * N)
         d.output_ϵ = zeros(max_chunk * N)