From 0466f3b271713f5e829b427cff65641829a5fd4e Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Wed, 30 Aug 2017 14:04:36 +0300
Subject: [core] Clear RenderGeoJSONSource tilePyramid if no data is available

---
 src/mbgl/renderer/sources/render_geojson_source.cpp | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/mbgl/renderer/sources/render_geojson_source.cpp b/src/mbgl/renderer/sources/render_geojson_source.cpp
index d6a81e13ca..f7976d7210 100644
--- a/src/mbgl/renderer/sources/render_geojson_source.cpp
+++ b/src/mbgl/renderer/sources/render_geojson_source.cpp
@@ -34,19 +34,24 @@ void RenderGeoJSONSource::update(Immutable<style::Source::Impl> baseImpl_,
 
     GeoJSONData* data_ = impl().getData();
 
-    if (!data_) {
-        return;
-    }
-
     if (data_ != data) {
         data = data_;
         tilePyramid.cache.clear();
 
-        for (auto const& item : tilePyramid.tiles) {
-            static_cast<GeoJSONTile*>(item.second.get())->updateData(data->getTile(item.first.canonical));
+        if (data) {
+            for (auto const& item : tilePyramid.tiles) {
+                static_cast<GeoJSONTile*>(item.second.get())->updateData(data->getTile(item.first.canonical));
+            }
+        } else {
+            tilePyramid.tiles.clear();
+            tilePyramid.renderTiles.clear();
         }
     }
 
+    if (!data) {
+        return;
+    }
+
     tilePyramid.update(layers,
                        needsRendering,
                        needsRelayout,
-- 
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