[core][cp] Backport #15112 to mojito

Backports #15112 to release-mojito.
mapbox · Jul 19, 2019 · e49370c · e49370c
1 parent 1811f60
commit e49370c
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
@@ -28,7 +28,10 @@ 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;