[core][cp] Backport #15112 to nectar

Backports #15112 to release-nectar.
mapbox · Jul 18, 2019 · 5cd8cdb · 5cd8cdb
1 parent acdf3b4
commit 5cd8cdb
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/mbgl/renderer/sources/render_custom_geometry_source.cpp b/src/mbgl/renderer/sources/render_custom_geometry_source.cpp
@@ -25,7 +25,10 @@ void RenderCustomGeometrySource::update(Immutable<style::Source::Impl> baseImpl_
                                  const bool needsRendering,
                                  const bool needsRelayout,
                                  const TileParameters& parameters) {
-    std::swap(baseImpl, baseImpl_);
+    if (baseImpl != baseImpl_) {
+        std::swap(baseImpl, baseImpl_);
+        tilePyramid.clearAll();
+    }
 
     enabled = needsRendering;