From 90441d2ab094d9bb83190c3e96d5157ff3b8fc05 Mon Sep 17 00:00:00 2001
From: Guillaume Ayoub <guillaume@courtbouillon.org>
Date: Tue, 12 Dec 2023 00:01:02 +0100
Subject: [PATCH] Avoid duplication when breaking out-of-flow boxes

Fix #2016.
---
 tests/test_float.py        | 46 ++++++++++++++++++++++++++++++++++++++
 weasyprint/layout/block.py |  3 ++-
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/tests/test_float.py b/tests/test_float.py
index b3be60b261..b813c112ff 100644
--- a/tests/test_float.py
+++ b/tests/test_float.py
@@ -695,6 +695,52 @@ def test_float_text_indent_3():
     assert p2.width == 12 * 20  # p text
 
 
+@assert_no_logs
+def test_float_previous_break():
+    page1, page2 = render_pages('''
+      <style>
+        @font-face { src: url(weasyprint.otf); font-family: weasyprint }
+        @page {
+          size: 13px;
+        }
+        body {
+          font-family: weasyprint;
+          font-size: 2px;
+          line-height: 1;
+        }
+        p {
+          break-after: avoid;
+        }
+        section {
+          break-inside: avoid;
+          float: left;
+        }
+      </style>
+      <article>
+        oooooo
+        oooooo
+        oooooo
+        oooooo
+      </article>
+      <p>xxxxxx</p>
+      <p>yyyyyy</p>
+      <section>
+        <div>aaaaaa</div>
+        <div>cccccc</div>
+      </section>
+      <article>
+        dddddd
+      </article>''')
+
+    html, = page1.children
+    body, = html.children
+    article, = body.children
+
+    html, = page2.children
+    body, = html.children
+    p1, p2, section, article = body.children
+
+
 @pytest.mark.xfail
 @assert_no_logs
 def test_float_fail():
diff --git a/weasyprint/layout/block.py b/weasyprint/layout/block.py
index 2e1dc99582..34cd762910 100644
--- a/weasyprint/layout/block.py
+++ b/weasyprint/layout/block.py
@@ -264,8 +264,9 @@ def _out_of_flow_layout(context, box, index, child, new_children,
                 result = find_earlier_page_break(
                     context, new_children, absolute_boxes, fixed_boxes)
                 if result:
-                    new_children, resume_at = result
             stop = True
+                    new_children[:], resume_at = result
+                    new_child = out_of_flow_resume_at = None
     elif child.is_running():
         running_name = child.style['position'][1]
         page = context.current_page