Wrong (cached) context hint popup

Qt Creator may show wrong (cached) context info on mouse hover (and probably other related operations).
I'm not sure about exact steps to reproduce it, but I've been looking up BusyIndicator::selectByMouse property in one of my QML files. Some time later I switched to another QML file, and by a chance mouse cursor ended up over my custom signal authenticationError(reason: string). But Qt Creator decided to show me context help for selectByMouse property.