Build fails with recursion error if kotlinx.serialization is also applied

[rickclephas]

When the kotlinx.serialization plugin is applied the build fails with a recursion error for the following class:

@Serializable
class Base64ByteArray(val value: ByteArray) {
    @Serializer(Base64ByteArray::class)
    companion object : KSerializer<Base64ByteArray> {
        override val descriptor = PrimitiveSerialDescriptor("Base64ByteArray", PrimitiveKind.STRING)
        override fun serialize(encoder: Encoder, obj: Base64ByteArray) = encoder.encodeString(obj.value.decodeToString())
        override fun deserialize(decoder: Decoder) = Base64ByteArray(decoder.decodeString().encodeToByteArray())
    }

    override fun equals(other: Any?): Boolean {
        if (this === other) return true
        if (other == null || this::class != other::class) return false
        other as Base64ByteArray
        return value.contentEquals(other.value)
    }

    override fun hashCode(): Int {
        return value.contentHashCode()
    }

    override fun toString(): String {
        return "Base64ByteArray(${value})"
    }
}

Also see #23 (comment).

[rickclephas]

@GrahamBorland explicitly specifying the return type of descriptor will "fix" the build:

override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("Base64ByteArray", PrimitiveKind.STRING)