From 201596c6e0711ff87090141bbc98465d42a677a7 Mon Sep 17 00:00:00 2001
From: Aayush Sabharwal <aayush.sabharwal@gmail.com>
Date: Tue, 17 Sep 2024 13:04:38 +0530
Subject: [PATCH] feat: improve `diff2term` for array symbolics

---
 src/utils.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/utils.jl b/src/utils.jl
index f2abd0cb7..2167bed06 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -131,8 +131,8 @@ function diff2term(O, O_metadata::Union{Dict, Nothing, Base.ImmutableDict}=nothi
             string(nameof(arguments(oldop)[1]))
         elseif oldop == getindex
             args = arguments(O)
-            opname = string(tosymbol(args[1]), "[", map(tosymbol, args[2:end])..., "]")
-            return Sym{symtype(O)}(Symbol(opname, d_separator, ds))
+            opname = string(tosymbol(args[1]))
+            return metadata(Sym{symtype(args[1])}(Symbol(opname, d_separator, ds)), metadata(args[1]))[args[2:end]...]
         elseif oldop isa Function
             return nothing
         else