QOpenGLWidget occasionally crashes when displayed in a QTabWidget

When displaying a widget derived from QOpenGLWidget inside a tab of
QTabWidget, the application occasionally crashes when showing the tab
containing the QOpenGLWidget's child. The application freezes the moment
the corresponding tab bar is clicked.

Here is a summary of pre-conditions of the described behaviour:

1.) The QOpenGLWidget uses QPainter::beginNativePainting.
2.) The QOpenGLWidget uses QStaticText with aggressive caching.
3.) The QOpenGLWidget is inserted into the QTabWidget but not initially
shown.

Attached you will find a stack trace taken while a crash occured.