clang code model: "F1" help access does not work for methods with parameters that are implicitly converted

When a method is called with a parameter that has a warning in the clang code model:

"implicit conversion changes signedness"

then the "F1" help access does not find any help: "No documentation available"

e.g.

QVector<SensorEvent> sensorEvents;
unsigned int numEvents = 2;
sensorEvents.resize(numEvents);

Looks like this in QtCreator if you have the cursor on resize and press "F1":

If the cursor is in sensorEvents then the help of QVector is openend by "F1".

Btw.: There is only one method "resize" in QVector....

What I'm wondering: if you can detect that there is a implicit conversion from foo to bar, wouldn't it be ok that help shows the documentation of "method(bar)"?