From b6b9874f976ad51e099b351fbc78e3f752d1e732 Mon Sep 17 00:00:00 2001
From: Katharine Hyatt <katharine.s.hyatt@gmail.com>
Date: Thu, 21 Aug 2025 14:54:20 +0200
Subject: [PATCH] Attempt to fix #262

---
 src/planar/preprocessors.jl | 2 +-
 test/planar.jl              | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/planar/preprocessors.jl b/src/planar/preprocessors.jl
index 7f93560fc..031190816 100644
--- a/src/planar/preprocessors.jl
+++ b/src/planar/preprocessors.jl
@@ -211,7 +211,7 @@ function _construct_braidingtensors!(ex, preargs, indexmap) # ex is guaranteed t
         newargs = Vector{Any}(undef, length(args))
         newargs[1] = args[1]
         success = true
-        indices = TO.getindices(ex)
+        indices = [TO.getindices(arg) for arg in args]
         for i in 2:length(ex.args)
             indexmapa = copy(indexmap)
             newargs[i], successa = _construct_braidingtensors!(args[i], preargs, indexmapa)
diff --git a/test/planar.jl b/test/planar.jl
index c347961ad..453a39c09 100644
--- a/test/planar.jl
+++ b/test/planar.jl
@@ -284,4 +284,13 @@ end
 
         @test tr1 ≈ tr2 ≈ tr3 ≈ tr4 ≈ tr5 ≈ tr6 ≈ tr7
     end
+    @testset "Issue 262" begin
+        V = ℂ^2
+        A = rand(T, V ← V)
+        B = rand(T, V ← V')
+        C = rand(T, V' ← V)
+        @planar D1[i; j] := A[i; j] + B[i; k] * C[k; j]
+        @planar D2[i; j] := B[i; k] * C[k; j] + A[i; j]
+        @test D1 ≈ D2
+    end
 end