Failure to decode image: blending_info.alpha_channel out of range

[Quackdoc]

Testing animation and splines image here https://jpegxl.info/old/art/ https://jpegxl.info/old/anim_jxl_logo.jxl

jxl-oxide fails to decode the image

jxl-oxide anim_jxl_logo.jxl -o anim_jxl_logo.jxl.png
2024-11-11T16:21:58.655214Z ERROR jxl_frame: blending_info.alpha_channel out of range blending_info=BlendingInfo { mode: Blend, alpha_channel: 0, clamp: false, source: 1 }
2024-11-11T16:21:58.660218Z ERROR jxl_oxide: failed reading JPEG XL image: frame error: bitstream error: bitstream validation failed: blending_info.alpha_channel out of range

[tirr-c]

It doesn't have alpha but specifies alpha blending... I don't think the spec is clear about what to do in this case. libjxl does as if alpha channel is all ones (just copies pixels).