From 0b589dd7525150db59b63244c88e944c90be2c02 Mon Sep 17 00:00:00 2001
From: Olga Khlopkova <o.khlopkova@corp.mail.ru>
Date: Mon, 26 Oct 2020 12:55:25 +0300
Subject: [PATCH] [generator] Call cross-mwm transit build only for existing
 transit section.

---
 generator/generator_tool/generator_tool.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/generator/generator_tool/generator_tool.cpp b/generator/generator_tool/generator_tool.cpp
index 9db2da37ad..4394466ea7 100644
--- a/generator/generator_tool/generator_tool.cpp
+++ b/generator/generator_tool/generator_tool.cpp
@@ -544,8 +544,12 @@ MAIN_WITH_ERROR_HANDLING([](int argc, char ** argv)
 
       if (FLAGS_make_transit_cross_mwm_experimental)
       {
-        routing::BuildTransitCrossMwmSection(path, dataFile, country, *countryParentGetter,
-                                             transitEdgeFeatureIds, true /* experimentalTransit */);
+        if (!transitEdgeFeatureIds.empty())
+        {
+          routing::BuildTransitCrossMwmSection(path, dataFile, country, *countryParentGetter,
+                                               transitEdgeFeatureIds,
+                                               true /* experimentalTransit */);
+        }
       }
       else if (FLAGS_make_transit_cross_mwm)
       {