CueTools 2.2.6: invalid partition order decoding FLAC with cuetools decoder but not libFLAC

[T-3B]

I was using the default decoder for FLAC in CueTools (that is CueTool's decoder).

When verifying an album CUE sheet (to search matches with CTDB and AR), I came across an error at the track 7: "invalid partition order".
CueTools then stopped there, not showing any result.

Then I went to "Settings" -> "Formats" -> "FLAC" and selected libFLAC as the decoder. CueTools now managed to verify the entire album without any error.

flac -t *.flac reported no error, so there is a problem with CueTools' "native" FLAC decoder.

Here is the 7th track of the album (I think it is enough, but ask me if you want the entire album and/or CUE + LOG): https://pixeldrain.com/u/dSNNc5oB