From 8aa970fea0fb9d523762d5a1f41771f2c9c29c5f Mon Sep 17 00:00:00 2001
From: Wentao Kuang <wkuang@linz.govt.nz>
Date: Fri, 18 Oct 2024 14:30:40 +1300
Subject: [PATCH] Fix debug hillshade infinite loading.

---
 packages/landing/src/components/debug.tsx | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/landing/src/components/debug.tsx b/packages/landing/src/components/debug.tsx
index d96414c92..ccf12784b 100644
--- a/packages/landing/src/components/debug.tsx
+++ b/packages/landing/src/components/debug.tsx
@@ -335,11 +335,12 @@ export class Debug extends Component<{ map: maplibregl.Map }, DebugState> {
       if (currentLayer) map.removeLayer(HillShadeLayerId);
       return;
     }
-    if (currentLayer?.source === sourceId) return;
+
+    const hillShadeSourceId = `${HillShadePrefix}${sourceId}`;
+    if (currentLayer?.source === hillShadeSourceId) return;
 
     // Hillshading from an existing raster-dem source gives very mixed results and looks very blury
     // so add a new source layer to generate from
-    const hillShadeSourceId = `${HillShadePrefix}${sourceId}`;
     const existingSource = map.getSource(hillShadeSourceId);
     if (existingSource == null) {
       const source = map.getSource(sourceId);