From d7f48813c8b7d67e63d493872b9924c59986ae96 Mon Sep 17 00:00:00 2001
From: Dominik Moritz <domoritz@gmail.com>
Date: Thu, 16 Jul 2026 17:02:20 -0400
Subject: [PATCH] fix: fix regression with toggle selection in legends

fixes #1080
---
 packages/vgplot/plot/src/legend.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/vgplot/plot/src/legend.js b/packages/vgplot/plot/src/legend.js
index f01763ffd..af69ad816 100644
--- a/packages/vgplot/plot/src/legend.js
+++ b/packages/vgplot/plot/src/legend.js
@@ -137,7 +137,11 @@ function interactorMark(legend) {
   const field = legend.field ?? findField(plot.marks, channel) ?? 'value';
   if (field) {
     const f = { field };
-    return { plot, channelField: c => channel === c ? f : undefined };
+    return {
+      plot,
+      channelField: c => channel === c ? f : undefined,
+      isUnnested: () => false
+    };
   }
 }