QtCreator editor window does not properly update texture when resizing window

When resizing the QtCreator window on Wayland, the window size changes but the underlying texture is just stretched and skewed.

This happens on the Editor page but not the Welcome page. When switching between the pages the texture size corrects itself, until you resize the window again. The hit areas for buttons and menus are correctly positioned, so it seems merely a rendering problem.

This can be observed both when run under Weston and kwin_wayland.