Reuse same FilterContext multiple times

[caffeinism]

    extractplanes = graph.add("extractplanes", "r+g+b")
    input.link_to(extractplanes)

    lut1 = graph.add("lut", ...)
    extractplanes.link_to(lut1, output_idx=1)

    lut2 = graph.add("lut2", ...)
    extractplanes.link_to(lut2, output_idx=1, input_idx=0) # same output_idx, error occur
    extractplanes.link_to(lut2, output_idx=0, input_idx=1)

I am working with ffmpeg filters. My task involves applying different filters like lut and lut2 to each RGB channel. However, an error occurs when I attempt to reuse the FilterContext for the RGB planes separated by extractplanes.

    extractplanes.link_to(lut2, output_idx=1, input_idx=0)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "av/filter/context.pyx", line 76, in av.filter.context.FilterContext.link_to
  File "av/error.pyx", line 424, in av.error.err_check
av.error.ValueError: [Errno 22] Invalid argument

Is there a way to reuse this like in ffmpeg?

[caffeinism]

Oh, I was mistaken. I should have used split. Posting this brought it back to me.