From 6ff9d8ac626d08e46c57557463994e096ffc9c1b Mon Sep 17 00:00:00 2001
From: Mikhail Pozdnyakov <mikhail.pozdnyakov@mapbox.com>
Date: Fri, 15 Nov 2019 19:47:43 +0200
Subject: [core] Sort style sources before orchestration

---
 src/mbgl/style/style_impl.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mbgl/style/style_impl.cpp b/src/mbgl/style/style_impl.cpp
index 95a39819fc..6aa80d3802 100644
--- a/src/mbgl/style/style_impl.cpp
+++ b/src/mbgl/style/style_impl.cpp
@@ -347,7 +347,13 @@ Immutable<std::vector<Immutable<Image::Impl>>> Style::Impl::getImageImpls() cons
 }
 
 Immutable<std::vector<Immutable<Source::Impl>>> Style::Impl::getSourceImpls() const {
-    return sources.getImpls();
+    auto impls = sources.getImpls();
+    mutate(impls, [&] (auto& impls_) {
+        std::sort(impls_.begin(), impls_.end(), [](const auto& a, const auto& b) {
+            return a->id < b->id;
+        });
+    });
+    return impls;
 }
 
 Immutable<std::vector<Immutable<Layer::Impl>>> Style::Impl::getLayerImpls() const {
-- 
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