Indentation incorrect for multiline expression in an assignment after the declaration that contains a null coalesce operator

[eygraber]

Coming from detekt/detekt#3863 as this appears to be a ktlint issue.

Expected Behavior

The following code should be treated as formatted correctly:

fun test() {
  val a: String = ""

  val someTest: Int?

  someTest =
    a
      .toIntOrNull()
      ?: 1
}

Observed Behavior

It is instead reformatted:

fun test() {
  val a: String = ""

  val someTest: Int?

  someTest =
    a
    .toIntOrNull()
    ?: 1
}

Steps to Reproduce

See ktlint-1165.zip

Your Environment

• Version of ktlint used: 0.41.0
• Name and version (or code for custom task) of integration used (Gradle plugin, Maven plugin, command line, custom Gradle task): custom Gradle task (from README)
• Version of Gradle used (if applicable): 7.1
• Operating System and version: Ubuntu 20.04