Using "this" within Kotlin "with" statement / False Positive?

We are facing an issue where Sonar is complaining about unnecessary / useless null checks (kotlin:S6619). As you can see on the small code sample this can indeed be null.

The code might be not ideal for sure…

Is Sonar understanding the this correctly inside Kotlin with statement? Or is Sonar treating this as class reference - as it normally would be?

val financials: FinancialsTO? = null

with(financials) {
    val isReferenceRequired =
        this?.totalAssets?.equals(FinancialTotalAssets.UNDER_20) == true ||
            this?.revenues?.equals(FinancialRevenues.UNDER_40) == true ||
            this?.ownFunds?.equals(FinancialOwnFunds.UNDER_2) == true
    if (this == null)
        throw BusinessException(ClientClassificationValidationErrors.FINANCIALS_NOT_FILLED)