[core] Fix render tile set source update

Before this change, the `RenderTileSetSource` implementation
ignored update calls for the sources whose description was not yet
loaded and it lead to missing of relayout requests.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mbgl/renderer/sources/render_tile_source.cpp b/src/mbgl/renderer/sources/render_tile_source.cpp
index ef3f34f595..c5afb38435 100644
--- a/src/mbgl/renderer/sources/render_tile_source.cpp
+++ b/src/mbgl/renderer/sources/render_tile_source.cpp
@@ -176,7 +176,7 @@ void RenderTileSetSource::update(Immutable<style::Source::Impl> baseImpl_,
         tilePyramid.clearAll();
     }
 
-    if (!implTileset) return;
+    if (!cachedTileset) return;
 
     updateInternal(*cachedTileset, layers, needsRendering, needsRelayout, parameters);
 }