Make sure to sort all symbol buckets the first time we get them ready for upload.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mbgl/renderer/buckets/symbol_bucket.cpp b/src/mbgl/renderer/buckets/symbol_bucket.cpp
index cf8120739a..f11679aafa 100644
--- a/src/mbgl/renderer/buckets/symbol_bucket.cpp
+++ b/src/mbgl/renderer/buckets/symbol_bucket.cpp
@@ -150,7 +150,7 @@ void SymbolBucket::sortFeatures(const float angle) {
         return;
     }
 
-    if (sortedAngle == angle) {
+    if (sortedAngle && *sortedAngle == angle) {
         return;
     }
     
diff --git a/src/mbgl/renderer/buckets/symbol_bucket.hpp b/src/mbgl/renderer/buckets/symbol_bucket.hpp
index 81053b3307..da8514c4cf 100644
--- a/src/mbgl/renderer/buckets/symbol_bucket.hpp
+++ b/src/mbgl/renderer/buckets/symbol_bucket.hpp
@@ -64,7 +64,7 @@ public:
     const bool iconsNeedLinear;
     const bool sortFeaturesByY;
     
-    float sortedAngle = 0;
+    optional<float> sortedAngle;
 
     bool staticUploaded = false;
     bool opacityUploaded = false;