Created attachment 69757 [details]
Screenshot of the configuration zone which cause problem
Here is a detailed description of the problem and its quick fix :
In the screenshot attachment, you can see the upper layout (english) is used when I press CTRL+"key". If I move French to the top setting, then the french layout will be used with CTRL+"key" shortcuts regardless of the actual layout.
This is how qt is handling shorcuts. You would need to file a (whish) bug against qt - I think there was a bug filed already for that but recently I could not find it (could have been closed).