Metal validation crash with Fastblur effect

Steps to Reproduce issue

• Create a custom qml item in root qml view.
• Use FastBlur qml item from graphic effects and set the source as the custom item.
• Construct C++ type deriving from QQuickItem and make it available to custom qml via registration using qmlRegisterType.
• Construct C++ class deriving from QSGNode and implement QSGNode::render function to render using metal render pipeline function with pixelFormat as MTLPixelFormatBGRA8Unorm.
• Set render interface to Metal Rhi
• Execute qml application.

Actual Result:

 Application crashes on start of execution with the following error:

For color attachment 0, the render pipeline’s pixelFormat (MTLPixelFormatBGRA8Unorm) does not match the framebuffer’s pixelFormat (MTLPixelFormatRGBA8Unorm).