False positive `MISSING_KDOC_ON_FUNCTION` on local function (function inside another function)

[DrAlexD]

Warning MISSING_KDOC_ON_FUNCTION is thrown for functions printHello() and printBye():

    fun printHelloAndBye() {
        fun printHello() {
            print("Hello")
        }
        printHello()
        val ab = 5
        ab?.let {
            fun printBye() {
                print("Bye")
            }
            printBye()
        }
    }

[nulls]

Please provide the code example

[DrAlexD]

Code example added