panic: B was in fact relevant

``` panic: B was in fact relevant goroutine 46694 [running]: github.com/neurlang/classifier/net/feedforward.(*FeedforwardNetwork).preTally(0xc0001a3a00, {0x7c3bf9c73fc8, 0xc0002001c0}, {0x5ad720, 0xc000206438?}, {0x8b, 0xa3}, {0x5aebf8, 0xc0002b2040}, 0xc000d65d80) ~/classifier/net/feedforward/feedforward_network.go:930 +0x1927 github.com/neurlang/classifier/net/feedforward.(*FeedforwardNetwork).preTally2(0xc0001aeaa0?, {0x7c3bf9c73fc8?, 0xc0002001c0?}, {0x5ad720?, 0xc000206438?}, {0x8b, 0xa3}, {0x5aebf8?, 0xc0002b2040?}, 0x553980?) ~/classifier/net/feedforward/feedforward_network.go:777 +0x114 github.com/neurlang/classifier/net/feedforward.(*FeedforwardNetwork).PreTally4(0xc0001a3a00, {0x5ae030, 0xc0002001c0}, {0x8b, 0xa3}, {0x5aebf8, 0xc0002b2040}, 0x1500000001?) ~/classifier/net/feedforward/feedforward_network.go:762 +0x257 github.com/neurlang/classifier/net/feedforward.(*FeedforwardNetwork).AnyTally(0xc000284780?, {0x5ae030?, 0xc0002001c0?}, {0xc000893660?, 0x400000001?, 0x500000001?}, {0x5aebf8?, 0xc0002b2040?}, 0x800000001?) ~/classifier/net/feedforward/feedforward_network.go:727 +0x57 main.main.func1.1(0xb0) ~/classifier/cmd/train_phonemizer_ulevel/main.go:85 +0x13e github.com/neurlang/classifier/parallel.ForEach.func1(0x900000001?) ~/classifier/parallel/foreach.go:26 +0x71 created by github.com/neurlang/classifier/parallel.ForEach in goroutine 1 ~/classifier/parallel/foreach.go:22 +0x77 Caught SIGINT, terminating processes... ``` Happened in 100% success rate tuning (double descent mode)