From e707a4f1876218e2b98a3e846d96defff730c81a Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 4 Oct 2023 20:52:48 -0600
Subject: [PATCH] Fix a bug in AffineConstraints::clear().

---
 include/deal.II/lac/affine_constraints.templates.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/deal.II/lac/affine_constraints.templates.h b/include/deal.II/lac/affine_constraints.templates.h
index 69dacd5f6c..c00d803f46 100644
--- a/include/deal.II/lac/affine_constraints.templates.h
+++ b/include/deal.II/lac/affine_constraints.templates.h
@@ -1097,6 +1097,7 @@ AffineConstraints<number>::clear()
   }
 
   locally_owned_dofs             = {};
+  local_lines                    = {};
   needed_elements_for_distribute = {};
 
   sorted = false;
-- 
2.39.5