「脇」が範囲外と判定される about encoding HOT 4 CLOSED

=== RUN   TestIs_Golden
    discriminator_test.go:106: line=141, want Is(Å)=true, got false
    discriminator_test.go:106: line=142, want Is(‰)=true, got false
    discriminator_test.go:106: line=143, want Is(♯)=true, got false
    discriminator_test.go:106: line=144, want Is(♭)=true, got false
    discriminator_test.go:106: line=145, want Is(♪)=true, got false
    discriminator_test.go:106: line=146, want Is(†)=true, got false
    discriminator_test.go:106: line=147, want Is(‡)=true, got false
    discriminator_test.go:106: line=148, want Is(¶)=true, got false
    discriminator_test.go:106: line=149, want Is(◯)=true, got false
    discriminator_test.go:106: line=3515, want Is(賄)=true, got false
    discriminator_test.go:106: line=3516, want Is(脇)=true, got false // ← ご報告いただいたもの
    discriminator_test.go:106: line=3517, want Is(惑)=true, got false
    discriminator_test.go:106: line=3518, want Is(枠)=true, got false
    discriminator_test.go:106: line=3519, want Is(鷲)=true, got false
    discriminator_test.go:106: line=3520, want Is(亙)=true, got false
    discriminator_test.go:106: line=3521, want Is(亘)=true, got false
    discriminator_test.go:106: line=3522, want Is(鰐)=true, got false
    discriminator_test.go:106: line=3523, want Is(詫)=true, got false
    discriminator_test.go:106: line=3524, want Is(藁)=true, got false
    discriminator_test.go:106: line=3525, want Is(蕨)=true, got false
    discriminator_test.go:106: line=3526, want Is(椀)=true, got false
    discriminator_test.go:106: line=3527, want Is(湾)=true, got false
    discriminator_test.go:106: line=3528, want Is(碗)=true, got false
    discriminator_test.go:106: line=3529, want Is(腕)=true, got false
    discriminator_test.go:106: line=6956, want Is(熙)=true, got false
--- FAIL: TestIs_Golden (0.00s)

ʼn♯♭♪†‡¶◯賄脇惑枠鷲亙亘鰐詫藁蕨椀湾碗腕熙