Don't resolve percentages on tables

weasyprint/layout/blocks.py

@@ -353,10 +353,9 @@ def block_container_layout(document, box, max_position_y, skip_stack,
             else:
                 page_break = 'auto'
 
-            resolve_percentages(child, box)
-
             if (child.is_in_normal_flow() and last_in_flow_child is None and
                     collapsing_with_children):
+                resolve_percentages(child, box)
                 # TODO: add the adjoining descendants' margin top to
                 # [child.margin_top]
                 old_collapsed_margin = collapse_margin(adjoining_margins)