Can't setup the startup localization for a mobile package

Hello, there!

I’m trying to set up the localization for a UE4 game.

I got DefaultGame.ini containing these lines:

InternationalizationPreset=All
CulturesToStage=en
-CulturesToStage=en
+CulturesToStage=en
+CulturesToStage=fr

What I am getting is “fr” localiztion at startup while I need a “en” one. What is the correct order for adding available localizations in DefaultGame.ini?