Wayland client crash when setting window visibility to false

We have the following setup:

• a custom QtWaylandCompositor
• a client application that provides several QWindows, thus using the QWayland QPA (-platform wayland)
• one window contains a QQuickFramebuffer object, in which we have a very simple rendering of a square (for testing purposes)

In this setup, we can quite reproducible create a crash by often setting the window visibility between false and true, via QWindow:.setVisible. Please have a look at the attached ASAN report for the issue.