Fix footnote in columns

Fixes #1433

3 files changed, 16 insertions, 2 deletions

diff --git a/library/src/layout/flow.rs b/library/src/layout/flow.rs
index 3e524c11..8c92d4b6 100644
--- a/library/src/layout/flow.rs
+++ b/library/src/layout/flow.rs
@@ -285,12 +285,16 @@ impl<'a> FlowLayouter<'a> {
         }
         .resolve(styles);
 
-        let is_columns = block.is::<ColumnsElem>();
+        // Temporarily delegerate rootness to the columns.
+        let is_root = self.root;
+        if is_root && block.is::<ColumnsElem>() {
+            self.root = false;
+            self.regions.root = true;
+        }
 
         // Layout the block itself.
         let sticky = BlockElem::sticky_in(styles);
         let fragment = block.layout(vt, styles, self.regions)?;
-        self.regions.root = self.root && is_columns;
 
         for (i, frame) in fragment.into_iter().enumerate() {
             if i > 0
@@ -305,6 +309,7 @@ impl<'a> FlowLayouter<'a> {
             )?;
         }
 
+        self.root = is_root;
         self.regions.root = false;
         self.last_was_par = false;
 
diff --git a/tests/ref/meta/footnote-columns.png b/tests/ref/meta/footnote-columns.png
new file mode 100644
index 00000000..528ec664
--- /dev/null
+++ b/tests/ref/meta/footnote-columns.png
diff --git a/tests/typ/meta/footnote-columns.typ b/tests/typ/meta/footnote-columns.typ
new file mode 100644
index 00000000..0dc88930
--- /dev/null
+++ b/tests/typ/meta/footnote-columns.typ
@@ -0,0 +1,9 @@
+// Test footnotes in columns, even those
+// that are not enabled via `set page`.
+
+---
+#set page(height: 120pt)
+#align(center, strong[Title])
+#show: columns.with(2)
+#lorem(3) #footnote(lorem(6))
+Hello there #footnote(lorem(2))