Wrong widget class being created a runtime, causing crash

I have a very simple project (attached):

• A library (libA) declaring and exporting a widget class itself using a ui file
• B library (libB) declaring and exporting a widget class itself using a ui file
• A main program loading both library and instantiating libA widget

When I deploy the program on Android, even if I specifically created libA widget from my main program, it's libB widget that is shown.

Apparently, the fact that the two ui files are declaring their classes with the same name "Widget" messes things up. If I modify the ui files to declare "WidgetA" and "WidgetB", there is no more problem. If widegtA.ui and widegtB.ui both declare a "Widget" class, then the wrong one is being created at runtime.

Once the wrong object is instantiated, if it contains different sub-widgets, the code is very likely to crash soon when you'll try to use them...

When one deploys big projects, one can't guarantee that there is never two ui files declaring the same object name (specially accross all shared libraries). So I thing this class misusage is really critical.

I'm using QtCreator 4.8.0 with NDK r18b (clang)