A question: I notice that in ktlint 1.0.0, incorrectly-named local variables are warned about with the rule

ktlint:standard:property-naming

. E.g. in

fun timeSince(then: Instant): Double {
    val now = Clock.systemUTC().instant()
    val duration = Duration.between(then, now)
    val duration_s = duration.toNanos() / 1e9
    return duration_s
}

that's the rule that warns about the name of

duration_s

, even though that's a read-only local variable, not a property. Is the rule just named badly, or is that a bug in the rule's application?