The icebreaker example blink.py fails with an error

[JamesTimothyMeech]

Traceback (most recent call last):
  File "/home/james/Desktop/icebreaker-amaranth-examples/icebreaker/blink/blink.py", line 30, in <module>
    plat.build(Blinker(10000000), do_program=True)
  File "/home/james/.local/lib/python3.10/site-packages/amaranth/build/plat.py", line 105, in build
    plan = self.prepare(elaboratable, name, **kwargs)
  File "/home/james/.local/lib/python3.10/site-packages/amaranth/build/plat.py", line 145, in prepare
    fragment = Fragment.get(elaboratable, self)
  File "/home/james/.local/lib/python3.10/site-packages/amaranth/hdl/ir.py", line 42, in get
    new_obj = obj.elaborate(platform)
  File "/home/james/Desktop/icebreaker-amaranth-examples/icebreaker/blink/blink.py", line 20, in elaborate
    led.eq(~led),
TypeError: bad operand type for unary ~: 'FlippedInterface'