lupdate breaks wth uniform initialization

If a class calls its base constructor or initializes any member using braced uniform initialization syntax (eg. Base{}), lupdate places all strings in the parent namespace instead of the class. Example:

namespace N {
class A
: public B
{
...
};
}

...

A::A()
: B{}
{
const auto s = tr("text");
}

"text" will be put in "N" context instead of "N::A".