IndentationRule inserting unnecessary line break after assignment followed by any continuation

[shashachu]

$ echo $'fun test() {
    val variable = first
        ?: second
}' > test.kt

$ ./ktlint -F --experimental test.kt

Expected:

fun test() {
    val variable = first
        ?: second
}

Actual:

fun test() {
    val variable =
        first
            ?: second
}

Seems to have something to do with the elvis operator; I haven't gotten it to break otherwise. Also works fine if the elvis operator is on the same line. Also,

fun test() {
    val variable = first
        second
}

produces

fun test() {
    val variable = first
    second
}

as expected.

[shashachu]

Also occurs with:

$ echo $'fun test() {
    val variable = first
        ?: second
}' > test.kt

$ ./ktlint -F --experimental test.kt

Output

fun test() {
    val variable =
        first
            .function()
}