Incorrect convert call for cons_hess_prototype since it's a vector of matrices

Author: Vaibhavdixit02

src/function/function.jl

@@ -52,7 +52,7 @@ function instantiate_function(f, x, ::AbstractADType, p, num_cons = 0)
     cons_h = f.cons_h === nothing ? nothing : (res,x)->f.cons_h(res,x,p)
     hess_prototype = f.hess_prototype === nothing ? nothing : convert.(eltype(x), f.hess_prototype)
     cons_jac_prototype = f.cons_jac_prototype === nothing ? nothing : convert.(eltype(x), f.cons_jac_prototype)
-    cons_hess_prototype = f.cons_hess_prototype === nothing ? nothing : convert.(eltype(x), f.cons_hess_prototype)
+    cons_hess_prototype = f.cons_hess_prototype === nothing ? nothing : [convert.(eltype(x), f.cons_hess_prototype[i]) for i in 1:num_cons]
     expr = symbolify(f.expr)
     cons_expr = symbolify.(f.cons_expr)