From ef337d6a191454e6d969ffc4d98c089f5359d7a1 Mon Sep 17 00:00:00 2001
From: Dominik Ziajka <dominik.ziajka@gmail.com>
Date: Thu, 29 Mar 2018 13:00:36 +0200
Subject: [PATCH] Make sure we have correct layer

---
 src/app/cartography/shared/widgets/layers.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/app/cartography/shared/widgets/layers.ts b/src/app/cartography/shared/widgets/layers.ts
index a7470cd8..3853bb0f 100644
--- a/src/app/cartography/shared/widgets/layers.ts
+++ b/src/app/cartography/shared/widgets/layers.ts
@@ -11,7 +11,9 @@ export class LayersWidget implements Widget {
 
     const layers_selection = view
       .selectAll<SVGGElement, Layer>('g.layer')
-        .data(layers);
+        .data(layers, (layer: Layer) => {
+          return layer.index.toString();
+        });
 
     const layers_enter = layers_selection
       .enter()