From ee3687ac366cf1072e2d3c002aeb7292303f191e Mon Sep 17 00:00:00 2001
From: Jiri Pittner <jiri@pittnerovi.com>
Date: Wed, 12 Nov 2025 14:59:46 +0100
Subject: [PATCH] tensor: use canonicalize_shape in flatten

---
 tensor.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tensor.cc b/tensor.cc
index 5273d17..2a69d62 100644
--- a/tensor.cc
+++ b/tensor.cc
@@ -871,8 +871,7 @@ if(is_flat())
 	if(has_symmetry()) //get rid of formal symemtry
 		{
 		Tensor<T> r(*this);
-		r.shape.copyonwrite();
-                for(int g=0; g<r.shape.size(); ++g) r.shape[g].symmetry=0;
+		r.canonicalize_shape();
                 return r;
 		}
 	else