Our nightly builds don't have Text Properties docker, because QML libraries are dropped in the packaging process.

See full bugreport here: https://bugs.kde.org/show_bug.cgi?id=491392

Important clue:

When building a "debug" package, i.e. when we do ./gradlew installDebug or cmake --build . --target create-apk, the QML libraries are installed properly. But when we build a nightly package, we call two additional commands:

./gradlew clean
./gradlew assembleNightly

And it seems like this ./gradlew clean removes the libraries from the package somehow.