Always store children as lists

Fix #1575.
Kozea · Feb 23, 2022 · b1027ff · b1027ff
1 parent 9353f89
commit b1027ff
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/weasyprint/formatting_structure/boxes.py b/weasyprint/formatting_structure/boxes.py
@@ -328,7 +328,7 @@ def remove_decoration(self, start, end):
     def copy_with_children(self, new_children):
         """Create a new equivalent box with given ``new_children``."""
         new_box = self.copy()
-        new_box.children = tuple(new_children)
+        new_box.children = list(new_children)
 
         # Clear and reset removed decorations as we don't want to keep the
         # previous data, for example when a box is split between two pages.

diff --git a/weasyprint/layout/page.py b/weasyprint/layout/page.py
@@ -592,7 +592,7 @@ def make_page(context, root_box, page_type, resume_at, page_number,
         page_is_empty, positioned_boxes, positioned_boxes, adjoining_margins,
         discard=False)
     assert root_box
-    root_box.children = tuple(out_of_flow_boxes) + root_box.children
+    root_box.children = out_of_flow_boxes + root_box.children
 
     page.fixed_boxes = [
         placeholder._box for placeholder in positioned_boxes